Silicone Hollow Adjustable Strap On Dildo By Nanma

Penetration play demands comfort, control, and sustained support—but traditional waist-only harnesses cause fatigue and limit positioning flexibility. The Nanma Silicone Hollow Adjustable Strap On Dildo 7.5 Inch solves this by combining a hollow cavity for penis support with adjustable shoulder straps that distribute weight evenly across your torso.

What it is

The Nanma Silicone Hollow Adjustable Strap On Dildo 7.5 Inch is a harness system designed to extend penetration while maintaining firmness and control. Its hollow interior cavity slides over the penis, holding it in place while the outer shape adds 7.5 inches of length and girth during partnered play. Removable shoulder straps anchor the entire system across both shoulders, distributing body weight evenly so you can sustain longer sessions without the fatigue that comes from waist-only harnesses.

Built from phthalate-free medical-grade silicone, this strap-on resists degradation through repeated use and cleaning. The non-porous surface supports thorough sanitization and maintains its shape and firmness over years of regular use. See the full BDSM Australia range of Strap-On-Me for other harness options and accessories.

Key features

• Hollow cavity design: Slides over the penis for mechanical support and firmness maintenance, eliminating the need for external aids or positioning adjustments during penetration.
• Adjustable shoulder harness: Distributes your body weight across both shoulders rather than concentrating pressure at the waist, reducing fatigue during extended sessions and allowing sustained control.
• Customizable fit: Harness width adjusts from 28–40 inches, accommodating different body types and allowing partners to modify tension and positioning based on comfort and angle preference.
• Body-safe material: Phthalate-free medical-grade silicone resists discoloration, sticking, and degradation, maintaining structural integrity through years of regular use and thorough cleaning.
• Fully waterproof: Complete silicone construction means you can use it in water, wash it thoroughly under running water, and store it without moisture concerns.

Specifications

• Insertable length: 7.5 inches; outer shaft diameter 1.75 inches; hollow cavity diameter 1.5 inches for secure penis fit.
• Harness dimensions: Adjustable width 28–40 inches to fit most torso sizes; removable shoulder straps with non-slip base for stability during penetration.
• Material: Phthalate-free medical-grade silicone; non-porous surface prevents bacterial colonization and supports complete sanitization without surface breakdown.
• Power: No batteries, charging, or electrical components required; operates through manual control and body positioning alone.
• Package contents: One hollow strap-on dildo with attached base, removable adjustable shoulder straps, care instruction card, and discreet packaging.

How to use a strap on sextoy

Adjust the harness straps to sit comfortably across both shoulders before beginning, ensuring even weight distribution and a snug fit around your torso. Slide the hollow cavity over the penis, positioning it so the outer shape aligns naturally with your body and the base sits flush against your skin. Apply water-based lubricant generously to the outer surface and your partner's opening to reduce friction and increase comfort. Start with slower movements to allow both of you to adjust to the added length and girth, then increase pace gradually as comfort and arousal build. Check in regularly with your partner about sensation, depth, and pace, adjusting harness tension or positioning if needed during use.

Experimenting with different harness positions and angles helps you discover which configuration provides the most comfortable and pleasurable experience for both partners. Pairing this strap-on with external stimulation on the clitoris or perineum creates layered sensation that intensifies arousal. During dominance scenes, you control depth and pace while wearing this strap-on, creating clear power dynamics and psychological submission. See the full BDSM Australia range of Pornhub Sextoys for complementary items that enhance penetration play. Advanced practitioners incorporate the strap-on into extended BDSM scenes where penetration becomes part of larger power exchange narratives and submission training protocols.

Care and storage

After use, wash the strap-on thoroughly with warm water and mild soap, paying close attention to the hollow interior cavity where fluid can accumulate. Rinse all components completely and allow them to air dry in a cool location before storing. Keep it in a cool, dry place away from direct sunlight or heat sources that could degrade the silicone. Store separately from other silicone products to prevent surface sticking.

Learn more

Understanding your body's natural arousal patterns helps you get the most from penetration play and harness systems. Read more about managing arousal across different life circumstances in How To Relieve Sexual Tension On Your Period. Knowledge and confidence enhance both pleasure and safety during partnered exploration.

Mistress Athena's training notes

By Mistress Athena — professional dominant and kink educator, sole instructor behind BDSM Australia's library of training videos. Read her full bio →

The hollow cavity design fundamentally changes how I control my submissives during penetration scenes. Adjustable shoulder straps distribute my body weight evenly, allowing me to maintain thrusting control for extended periods without the fatigue I experienced with waist-only harnesses. My submissives respond with deeper submission when I'm able to sustain consistent, controlled penetration—the mechanical support transforms my movements from hesitant to commanding. This strap-on becomes a tool of dominance through its engineering alone.

The hollow cavity's snug fit around my partner's penis creates a psychological reinforcement of my control over their body and pleasure. I employ this strap-on in extended BDSM scenes where penetration becomes part of larger submission protocols, using the adjustable harness to modify my angle and depth based on the submissive's responses. Training submissives to accept deeper penetration using this strap-on's consistent support allows me to control pace and depth independently of my own physical stamina.

Combining this strap-on with sensory deprivation and restraint creates powerful psychological impact on my submissives. The adjustable harness allows me to modify positioning during scenes—sometimes kneeling for deeper control, other times standing for different psychological dynamics I'm establishing. My submissives often experience intensified submission during longer scenes because my ability to maintain control demonstrates dominance through sustained physical presence and endurance.

The most effective training progression involves starting with shorter penetration sessions and gradually extending duration as the submissive's submission deepens and their trust in my control increases. I've trained submissives who specifically request this strap-on because they associate its mechanical support with my absolute control over their pleasure and submission. This tool has become central to how I establish and reinforce power dynamics within my practice.

See this and similar tools in action across my 300+ training videos on the BDSM Australia channel.

How it compares

Why you'll reach for it

Grab the Nanma Silicone Hollow Adjustable Strap On Dildo 7.5 Inch at BDSM Australia when you're ready to sustain longer penetration sessions without fatigue or discomfort. The adjustable shoulder harness and hollow cavity design provide mechanical support and distributed weight that traditional waist-only systems can't match. Order today and experience the control and endurance that comes from engineering designed specifically for extended dominance play. Strong Brands. Honest Service. Genuine Care.