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G-PROJECT Kuru-Kuru 11 Masturbator by Exe and King

$119.99
$119.99

Japanese masturbator with 11 spiral rotations for intense gripping sensations. GROW UP SKIN material, 657g weight, 17.5cm length.

Key Features:

Eleven spiral rotations create intense twisting grip patterns

GROW UP SKIN material delivers lifelike stretchy feel

Substantial 657g weight provides authentic stroking presence

Generous 17.5cm length accommodates different stroke techniques

Japanese engineering separates this from basic sleeve designs

Vendor: Exe and King
SKU: FD-UGPR-232
Availability: In stock
Product type: Masturbators and Strokers
Please hurry! Only 1 left in stock

The G-PROJECT Kuru-Kuru 11 Masturbator by Exe and King is a Japanese stroker sleeve with 11 internal spiral rotations that grip and twist during use. Built from GROW UP SKIN material and weighing 657 grams, it delivers sensations that intensify with your rhythm. It suits men seeking something more dynamic than a basic sleeve.

The basics
  • Type: Manual stroker sleeve with 11 spiral rotation patterns inside
  • Material: GROW UP SKIN — soft, stretchy, and body-safe
  • Size: 17.5 centimetres length, 657 grams total weight
  • Design: Spiral interior creates twisting grip sensations that build with each stroke
  • Use: Hand-held masturbation; apply water-based lubricant generously before use
  • Care: Rinse thoroughly after use, dry completely, store in a cool place
🚚 Fast, tracked Australian shipping🔒 Plain, discreet packaging & billing✅ Genuine brands, backed by warranty💬 Product & sizing help whenever you need it

What you're getting

The G-PROJECT Kuru-Kuru 11 Masturbator by Exe and King combines Japanese engineering with a lifelike interior that shifts as you stroke. Inside, eleven spirals grip and release in sequence, creating a sensation quite unlike smooth or basic textured sleeves. Unlike textured strokers that rely on bumps and ridges, the spiral design actively works with your movement, building intensity as your pace quickens.

The 657-gram weight gives it substantial presence in your hand — closer to authentic sensation than lightweight alternatives. GROW UP SKIN stretches smoothly without being restrictive, and the 17.5-centimetre length accommodates varied stroking techniques. This is purposeful build quality, not flash.

The highlights

  • Eleven spirals: Each rotation catches and releases as you move, creating twisting sensations that intensify with rhythm and speed.
  • Authentic material: GROW UP SKIN delivers that soft, gripping feel that responds to pressure without pinching or numbing.
  • Substantial weight: At 657 grams, it feels solid and present, not flimsy or hollow.
  • Generous length: The 17.5-centimetre interior works with longer strokes and different hand positions.
  • Japanese precision: Built to perform consistently, with spirals engineered to create predictable sensation patterns.

Specifications

  • Material: GROW UP SKIN — medical-grade, non-porous, body-safe elastomer
  • Length: 17.5 centimetres of internal stroking space
  • Weight: 657 grams including material and internal structure
  • Interior design: 11 spiral rotations moulded into the sleeve for gripping action
  • Closure: Open-ended design, easy to clean and dry
  • Power source: None — manual use only, no batteries or charging
  • Box contents: Sleeve only; lubricant sold separately

Setting up a masturbators and stroker

Before use, inspect the sleeve for any damage and rinse it thoroughly under warm water. Apply generous amounts of water-based lubricant inside — the spirals grip more effectively when well-lubricated, and friction resistance works better with adequate slip. Warming the sleeve slightly under warm running water (not hot) can make the GROW UP SKIN more responsive. Unlike app controlled masturbators, this requires no setup beyond lubrication and is ready to use immediately.

Begin with slower strokes to feel how each spiral engages. As you move faster, you'll notice the sensations building and shifting — this is the design working as intended. Experiment with grip pressure and stroke length to find your rhythm. Some men prefer long, full strokes; others favour shorter, faster movements. The spirals respond differently to each technique.

Who it suits

Men after spiral-gripping sensations often favour Japanese strokers, particularly those exploring Japanese Ona Holes and specialised sleeves.

Great if you…
  • Want more dynamic sensation than a basic smooth or textured sleeve provides
  • Appreciate Japanese build quality and engineering precision
  • Prefer manual control and no batteries or charging involved
  • Have time to explore different stroke speeds and techniques
Maybe not if you…
  • Need hands-free operation or automatic stroking motion
  • Find 657 grams too heavy to hold comfortably for extended periods
  • Prefer simpler interiors — the spirals require more lubricant and attention to sensation
Rinse the sleeve thoroughly after each use, dry it completely before storage, and always use water-based lubricant to avoid material degradation — never use silicone-based lubricants with this material. Safety first. This information is general in nature only and is not medical or professional advice; it does not account for your individual circumstances. Stop use and seek medical advice if you experience pain, numbness, swelling, discolouration, bleeding or persistent irritation.

Care and storage

Rinse the interior and exterior thoroughly under warm running water immediately after use, then dry completely with a soft cloth or allow air-drying. Store in a cool, dry location away from direct sunlight and heat sources, which can degrade the GROW UP SKIN over time. Keep away from sharp objects and rough surfaces. A dedicated storage pouch or drawer is ideal. Do not store while damp.

Further reading

Understanding stroker design, material properties, and technique can help you get the most from any sleeve. Read more about how different masturbators work and what to expect from each style in our guide to Male Masturbators. Choosing the right sleeve for your preferences makes a real difference in satisfaction.

What to expect

by Risetob

The spiral action takes a few strokes to fully feel — the first use often surprises because the sensation builds progressively rather than hitting hard immediately. Most men find themselves adjusting their stroke rhythm within the first minute, slowing down to experience each spiral individually, then speeding up once they understand the pattern. The weight is noticeable in your hand, which some find realistic and grounding, whilst others need a moment to adjust to holding something heavier than lightweight alternatives.

Lubrication matters more with this sleeve than with smooth interiors — the spirals need slip to work properly, and under-lubrication creates friction that dulls sensation rather than intensifies it. Reapply lubricant partway through if you're going for longer sessions. Many users find their grip pressure naturally changes as they explore the sleeve, because different pressures highlight different spiral sensations.

Cleaning is straightforward — warm water and thorough drying prevent mould or odour. The GROW UP SKIN is durable and retains its grip and texture through regular use. Some men get the best results by spending time learning the sleeve rather than rushing through sessions; the spiral design rewards attention to technique and rhythm.

First-time stroker users sometimes expect automatic sensations, but this is manual — your movement drives everything. That's also its strength: you control intensity, speed and sensation entirely. Men used to basic sleeves often report the spiral design feels like a step up in sophistication and engagement.

How it compares

Stroker Type Interior Design Sensation Character Setup Required Best For
G-PROJECT Kuru-Kuru 11 (Spiral) 11 rotating spiral ridges Twisting, gripping, builds with rhythm Lubricant only Men seeking dynamic spiral action
Basic Textured Sleeve Bumps, ridges, static patterns Consistent pressure, varied textures Lubricant only Beginners, men who prefer simplicity
Smooth Interior Sleeve Uniform, featureless tunnel Gentle, uniform pressure Lubricant only Sensitive users, stamina training
Automatic Stroker Varies by model Motorised motion, hands-free option Charging, assembly Men wanting passive, motorised sensation
Double-Ended Stroker Two different interiors Variable — can change sides Lubricant only Men exploring multiple sensations

The final word

Secure your G-PROJECT Kuru-Kuru 11 Masturbator by Exe and King from Malechastity.com.au with discreet Australia-wide delivery. The eleven spirals deliver a gripping, twisting sensation that stands apart from basic sleeves, and the Japanese engineering ensures consistent quality and performance. If you're ready to step up from standard strokers, this is worth exploring. Order it today. Genuine Brands, Backed by Warranty.

Malechastity.com.au ships with Australia Post. We ship from Sydney.

All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.

Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.

Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.

Shipping Transit Times (Including Free Shipping)

Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..

1. Major City & Metro Areas (within Australia)

All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.

Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.

2. Rural Areas (within Australia)

All orders are generally processed on the same day the order was placed on business days before 12pm.

Generally, orders are processed and shipped the same day or next Business day.

Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.

International Shipping

The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).

All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping. 

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.

Please note in regards to all orders

– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order.  If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.

Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.

We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.

Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.

Due to health and safety regulations, Maleshastity.com.au cannot resell any returned or exchanged products.

This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.

To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.

You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.

Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully. 

Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Damages and issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items

We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.

Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.

Please remember it can take some time for your bank or credit card company to process and post the refund too.

Frequently Asked Questions

What is the Spiral Ecstasy - G-PROJECT Kuru-Kuru 11 Masturbator and what type of pleasure device is it?
A premium Japanese masturbator featuring eleven spiral rotations, this sleeve delivers intense twisting sensations through GROW UP SKIN material. Weighing 657g with 17.5cm length, it creates gripping patterns that build and shift as you stroke for realistic pleasure.
Can the Spiral Ecstasy - G-PROJECT Kuru-Kuru 11 Masturbator create sensations different from basic strokers?
Eleven rotating spirals grip and release in patterns that actively work with your rhythm, creating twisting sensations that change based on speed. Unlike simple sleeves that just squeeze, the spirals catch and build intensity with every movement.
How does the Spiral Ecstasy - G-PROJECT Kuru-Kuru 11 Masturbator work during use?
Apply water-based lubricant then stroke through the spirals which create resistance and release that varies with your pace. The substantial 657g weight provides authentic feel while spirals twist around you for building intensity throughout your session.
Does the Spiral Ecstasy - G-PROJECT Kuru-Kuru 11 Masturbator appeal to specific types of men?
Intensity seekers wanting more than basic stroking and quality-focused guys who appreciate Japanese engineering find this sleeve transforms their solo sessions. Those craving twisting sensations that build differently than standard sleeves discover new levels of pleasure.
Is the Spiral Ecstasy - G-PROJECT Kuru-Kuru 11 Masturbator available for discreet delivery in Australia?
MaleChastity.com.au ships this premium Japanese masturbator discreetly across Australia, ensuring private delivery of your Spiral Ecstasy sleeve. Order online to experience those unique spiral sensations with complete confidentiality and reliable service.

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