B BALLS DUO Weighted Kegel Balls by Fun Factory

The B BALLS DUO Weighted Kegel Balls by Fun Factory is a silicone butt plug with two internal weighted spheres that roll and shift with your movement, creating natural stimulation rather than vibration. The tapered tip and flat base make it comfortable for all experience levels, and the motion builds with activity, making it ideal for extended wear.

What it is and how it's made

The B BALLS DUO Weighted Kegel Balls by Fun Factory is a single-piece silicone butt plug engineered around a simple but effective mechanism: two weighted spheres suspended inside the body that move freely as you do. Unlike vibrating butt plugs, which deliver constant stimulation through a motor, this toy creates sensation through gravity and momentum. The spheres roll and shift with natural movement, building waves of stimulation that feel organic and responsive to your body rather than imposed by a set vibration pattern.

The plug itself is crafted from medical-grade silicone that softens and warms against your skin, making it comfortable for prolonged wear. A tapered tip guides insertion smoothly, while the flat base anchors the toy securely and prevents deeper accidental movement. Fun Factory backs the construction with a 25-year warranty, reflecting confidence in both material quality and durability.

Key features

• Dual weighted spheres: Two internal balls roll freely, creating natural rolling sensations that intensify with movement and settle during stillness.
• Body-safe silicone: Soft, flexible material warms to body temperature and remains hypoallergenic for sensitive skin.
• Tapered insertion tip: Narrowed design guides the plug in smoothly without forcing, making it beginner-friendly and comfortable.
• Flat base design: Anchors securely against your body while remaining discreet and comfortable for hours of wear.
• Waterproof construction: IPX7 rating allows full submersion cleaning and shower or bath play without risk of water damage.

Technical specifications

• Total length: 13 centimetres from tip to base for comfortable internal and external fit.
• Maximum diameter: 4 centimetres at the widest point, tapering gradually toward the tip.
• Material: Medical-grade body-safe silicone, non-porous and latex-free.
• Weight and internal mechanism: Two weighted spheres with enough mass to create noticeable motion during activity.
• Closure and retention: Flat base with no snap or clasp; relies on natural pelvic floor contact for secure wear.
• Waterproof rating: IPX7, safe for full immersion and stream cleaning.
• Box contents: The plug itself, storage pouch, and instruction card with care guidance.

Getting started with a weighted butt plug

Begin by cleaning the plug thoroughly with warm water and toy cleaner, then apply generous amounts of water-based lubricant to both the toy and your entrance. Start in a relaxed position—lying on your side or on your knees—and allow time for your body to adjust. Insert the tapered tip slowly, pausing if you feel tension, then gently ease the rest of the plug inward until the base sits flush. Many people find that Jiggle Sex Beads offer a similar experience but with different pacing, so knowing your preference helps guide your choice.

Once inserted, stay still for a few moments to acclimatise before standing or moving. The rolling sensation from the weighted spheres will begin as soon as you shift your weight or walk. Start with shorter sessions of 15–20 minutes to understand how your body responds, then gradually extend wear time as comfort increases. After use, remove the plug slowly, clean it with toy cleaner and warm water, dry it fully, and store it in the included pouch away from direct sunlight.

Who it suits

Care and storage

Clean the B BALLS DUO after every use with warm water and a toy-specific antibacterial cleaner, paying attention to the base and seams where lubricant collects. Pat it dry with a soft cloth and allow it to air-dry completely before storing it in the included pouch. Store the pouch in a cool, dark place away from direct sunlight, which can degrade silicone over time. Do not store near other silicone toys as they may stick together.

Want to know more?

Understanding how weighted anal toys differ from vibrating alternatives helps you choose based on what your body truly wants. Read more about the range of stimulation styles and what to expect from each in our guide on Butt Plugs For Gays.

What to expect

The first time you wear the B BALLS DUO, the sensation will feel quite different from what you might expect. The rolling motion is subtle at rest but becomes noticeably stronger the moment you stand or move. Most first-time users are surprised by how much the motion builds with activity—walking, sitting down, or shifting your weight all trigger different sensations. The experience feels responsive to your body rather than imposed by an external force, which many people find more natural than vibration.

Comfort during insertion depends entirely on relaxation and lubrication. Rushing either of these steps is the main reason people find the initial experience uncomfortable. A warm-up period of five to ten minutes of external touch before insertion makes a measurable difference, as does using more lubricant than you think you need. Once fully inserted, most people find the plug settles quickly into a comfortable position thanks to the flat base and tapered design.

The weighted spheres require no maintenance and will not wear out. Silicone itself is durable and does not degrade with normal use, though sunlight exposure over months or years can cause slight discolouration. The flat base may develop minor surface marks from contact with skin or lubricant, but these do not affect function or safety. Most users report that the toy remains fully responsive after years of regular use.

A small number of people find that the rolling motion, while different from vibration, does not provide enough stimulation for them. This is a genuine preference difference, not a flaw in the toy—it means a vibrating plug would suit them better. The gentle, responsive nature of the B BALLS DUO appeals most to people who benefit sustained sensation over peaks, or who want to wear a plug discreetly during other activities.

How it compares

The bottom line

Check out the B BALLS DUO Weighted Kegel Balls by Fun Factory if you want anal stimulation that feels responsive and natural rather than imposed by a vibrator. The rolling motion from the dual weighted spheres creates sensation that builds with your own movement, making it ideal for extended wear and exploration. Order it from Malechastity.com.au with discreet Australia-wide delivery and the confidence of Fun Factory's 25-year warranty behind every purchase. Shipped Fast From Our Australian Warehouse.