Power Sealed Open Wide 4 Inch Tunnel Plug By Nanma

Anal plugs often deliver only basic sensations, leaving experienced users wanting more. The Nanma Power Sealed Open Wide 4 Inch Tunnel Plug solves this with its distinctive tunnel-style opening, creating expanded interior sensation unavailable in solid designs while its tapered tip ensures smooth, controlled insertion.

What it is

The Nanma Power Sealed Open Wide 4 Inch Tunnel Plug combines a tapered entry tip with an expanded tunnel-style interior, creating sensation distinctly different from traditional solid plugs. Made from flexible yet supportive TPE, the plug adapts to individual anatomy while maintaining its shape through repeated use. The wide flared base anchors securely, preventing unwanted shifting during movement or extended wear sessions. High-quality construction delivers durability without sacrificing the natural flex that makes insertion and wear comfortable.

What sets this plug apart is its tunnel design—the expanded interior opening creates a psychological and physical sensation that solid plugs cannot replicate. The tapered tip guides entry smoothly, while the wider chamber delivers expanded fullness once fully inserted. See the full BDSM Australia range of Butt Plugs to explore other styles and sizes for comparison.

Key features

• Tunnel-style opening: Interior design creates distinctive sensation and psychological impact unavailable in solid anal plugs.
• Tapered tip: Graduated entry reduces initial resistance and guides smooth insertion for controlled penetration.
• Flexible TPE material: Body-safe thermoplastic elastomer adapts to anatomy while maintaining supportive structure and shape integrity.
• Detachable base: Metallic finish base section separates for simplified cleaning and maintenance after each use.
• Flared foundation: Wide base prevents deep insertion, anchors securely during wear, and creates visual appeal.

Specifications

• Insertable length: 4.5 inches from tapered tip to widest point of tunnel opening.
• Diameter range: 1.2 inches at tip, expanding to 2.1 inches at tunnel opening, 2.8 inches total base width.
• Material: High-quality TPE thermoplastic elastomer, phthalate-free, non-porous surface for thorough cleaning and bacterial resistance.
• Base design: Detachable metallic section with flared foundation prevents deep insertion and simplifies maintenance.
• Power source: Manual operation requires no batteries, charging, or electronics.
• Package contents: Nanma Power Sealed Open Wide 4 Inch Tunnel Plug with detachable base, storage pouch, and care instructions.

How to use a butt plug

Clean the plug thoroughly with warm water and mild soap before first use. Apply generous water-based lubricant to both the tapered tip and the anal opening, then relax the sphincter muscles through deep breathing. Insert slowly, pausing as the wider tunnel section enters your body to adjust to the expanding sensation. Once fully inserted, the flared base should rest against your body, preventing deeper movement. Wear for your desired duration, remaining still or moving gently based on comfort and preference.

Advanced exploration combines this plug with external stimulation for layered sensations, or pairs it with bondage for psychological intensity. Gentle rocking motions intensify tunnel sensations, while the detachable base allows creative positioning variations. Discover additional anal play options by exploring the Butt Tails collection for complementary sensations and visual appeal during wear or scenes.

Care and storage

After use, detach the base section and clean all components with warm water and mild soap, ensuring no lubricant residue remains. Handle the TPE material gently during cleaning to preserve texture and flexibility. Store in a cool, dry location away from direct sunlight, keeping the plug separate from other toys to prevent material interaction. Allow complete drying before storage to maintain material integrity.

Learn more

Understanding how different anal toys produce varying sensations helps you choose the right tool for your exploration. For detailed comparison of how plugs differ from other anal toys in design and function, read Anal Plugs Vs Prostate Massagers. This knowledge deepens your appreciation for what makes tunnel-style designs unique.

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 Nanma Power Sealed Open Wide 4 Inch Tunnel Plug creates psychological impact in my submissives that solid designs cannot replicate. The expanded tunnel opening produces distinctive internal sensations my subjects cannot mentally escape—their breathing patterns shift noticeably, their posture adjusts unconsciously, and their eyes reflect the intensity I'm deliberately creating. This forced awareness becomes the training itself, as my submissives struggle with sensations they cannot refuse or minimize.

Extended wear sessions intensify the psychological effect, particularly when combined with tasks requiring movement. The tunnel design prevents mental escape, forcing authentic responses rather than performative submission. My submissives report feeling more "claimed" by this particular plug because its expanded interior occupies significantly more internal space than traditional plugs, creating lasting awareness of their anal possession.

I employ the detachable base strategically during training, creating deliberate inspection moments where I remove the plug and force my submissives to acknowledge what they've been holding inside their bodies. The metallic finish appeals to their visual centers, creating anticipation when they see me selecting this particular plug from my collection. Public wear sessions create powerful psychological effects—my submissives maintain external composure while remaining acutely aware of their anal possession, generating the internal tension I deliberately cultivate.

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

Check out the Nanma Power Sealed Open Wide 4 Inch Tunnel Plug at BDSM Australia for distinctive tunnel-style sensation solid plugs cannot match. High-quality TPE construction with a detachable base simplifies cleaning while the tapered tip ensures smooth, controlled insertion. Order today and experience expanded sensation designed for intermediate explorers seeking genuine variety and psychological intensity in their anal play. Trusted by Customers Across Australia.