Medical-grade stainless steel urethral sound with hollow cum-thru core. Allows natural function during extended wear without removal.
Key Features:
Hollow core allows natural function without removal during climax
Medical-grade stainless steel ensures body-safe advanced urethral play
Substantial weight provides constant awareness with every movement
Mirror-polished finish slides smoothly for comfortable insertion
Temperature-conducting steel perfect for hot and cold sensations
Chasm Stainless Steel Cum-Thru Urethral Insert Penis Plug is a medical-grade steel urethral sound with a hollow core that allows natural function during extended wear. Built for advanced players who want substantial internal sensation without removing the plug during climax or between sessions.
Chasm Stainless Steel Cum-Thru Urethral Insert Penis Plug is a precision-engineered urethral sound designed for experienced players seeking extended internal stimulation. The hollow core distinguishes it from solid penis plugs, enabling you to stay inserted during climax or extended sessions without interruption. Medical-grade stainless steel construction ensures durability and body safety across repeated use.
The mirror-polished finish eliminates catching or friction during insertion and wear. Weight distribution through the steel creates a constant, satisfying presence that reminds you of the plug with every movement or position change. This design bridges the gap between basic sounds and advanced urethral toys, offering serious sensation paired with practical functionality.
Start by washing the plug and your hands thoroughly with soap and warm water. Apply a generous amount of sterile lubricant (water-based or silicone-based) to both the plug and your urethra; do not skip this step. Relax fully and guide the plug slowly into the opening, allowing your body time to adjust to each millimetre of depth. Stop if you experience sharp pain—discomfort should always mean pause and reassess.
Once inserted fully, the hollow core means you can continue activity or simply wear it for extended periods. If you explore Electro Penis Plugs later, the same sterile insertion technique applies. Removal is straightforward: relax, apply more lubricant if needed, and gently withdraw the plug using steady, even pressure. Never force removal or rush the process.
Glass Urethral Sounds offer visual appeal, but steel delivers weight and heat conduction this plug is engineered for.
Great if you…Wash the plug thoroughly with warm soapy water immediately after use, paying attention to the hollow opening and core. For deeper sterilisation, place it in boiling water for five minutes or use an autoclave if available. Dry completely with a lint-free cloth before storage. Store in a clean, dry location away from moisture. The non-porous steel resists bacterial growth, but keeping it dry extends its lifespan and ensures hygiene between sessions.
Urethral sounding is a specialised form of internal stimulation that requires knowledge and caution. Sterile technique, gradual progression, and understanding your body's signals are essential to safe practice. Read more about proper technique and safety protocols at Using Penis Plugs Safely.
First insertion often produces an intense cold-steel shock that many describe as simultaneously startling and deeply satisfying. Your body warms the steel within minutes, shifting the sensation from acute to a constant, grounding presence. Most users report that the hollow core design changes how extended wear feels—the pressure builds differently than with solid sounds, and the ability to climax without removal removes a major source of session interruption.
The 0.3-inch diameter sits at the threshold of what experienced players call "serious" sensation; it is noticeably larger than beginner sounds but not extreme for those with prior experience. First-timers to this gauge often underestimate how much the extra width changes the sensation profile—it is not a minor step up, so honest self-assessment of your prior experience matters.
Cleaning is straightforward because steel is non-porous and resists harbouring bacteria or residue. Many users appreciate that this plug can be boiled or autoclaved if they share equipment or simply want maximum certainty of sterilisation. The weight does not change or settle over time; stainless steel remains consistent, so what you feel on day one remains your baseline for wear.
Removal sometimes feels smoother than insertion because your body has relaxed fully and adjusted to the width. However, some users experience a brief moment of sensitivity once the plug is out—this is normal and typically passes within seconds. If you notice persistent discomfort after removal, that signals you need more lubricant or longer insertion time in future sessions.
| Urethral Sound Type | Best For | Key Difference |
|---|---|---|
| Hollow Cum-Thru Sounds (like Chasm) | Extended wear and uninterrupted climax | Function naturally without removal; fluid passes through the core |
| Solid Steel Sounds | Maximum internal pressure and weight | No hollow opening; requires removal for climax or urination |
| Flexible Urethral Sounds | Beginners or sensitivity concerns | Silicone or flexible material bends with body movement; gentler insertion |
| Graduated Sounds (Sets) | Progressive gauge exploration | Multiple sizes build tolerance gradually; not for immediate extended wear |
| Textured or Ribbed Sounds | Added internal sensation and grip | Surface features increase stimulation; requires more precision to insert safely |
Shop for Chasm Stainless Steel Cum-Thru Urethral Insert Penis Plug from Malechastity.com.au with discreet Australia-wide delivery. Experienced sound players return to this design because the hollow core removes a fundamental frustration—the need to choose between wearing the plug and climaxing. The mirror-polished steel quality and reliable weight deliver consistent sensation across repeated sessions, and the medical-grade material stands up to regular use and sterilisation. Order it now and discover why advanced players trust this plug for serious, extended urethral play. Plain Packaging, Total Privacy, Every Order.
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..
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.
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.
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.