Tunnel Fuckplug 4 Extra Large by Oxballs

Extreme anal stretching for experienced users: the Tunnel Fuckplug 4 Extra Large delivers a massive 10-inch circumference with a hollow tunnel opening, designed for serious girth and unique dual-access play possibilities.

What it does

Built from premium silicone, the Tunnel Fuckplug 4 Extra Large combines extreme girth with a hollow centre that opens unique play possibilities. As the massive plug settles into position, waves of fullness spread through your entire pelvic region. You'll feel both the intense stretching sensation and the unique openness simultaneously—a dual sensation that regular plugs simply cannot match. Extended sessions show how the ergonomic base design prevents fatigue while maintaining incredible sensations throughout, letting you push your boundaries without discomfort.

Orgasms from extreme anal stretching feel completely different from regular play. Climaxes build from deep internal pressure rather than surface stimulation alone. Your body responds intensely when stretched to this extreme. For those seeking deeper internal sensation, Prostate Vibes can complement your stretching practice and add vibration to extended sessions.

Specifications

• Material: 100% premium silicone
• Insertable length: 4.5 inches (11.4 cm)
• Circumference: 10 inches (25.4 cm)
• Tunnel opening diameter: 1.75 inches (4.4 cm)
• Base design: Ergonomic for secure, extended wear
• Colour: Red silicone

Size and first use

This is an extreme sex toy designed for people with significant experience stretching anally. Start by relaxing completely and working up to the full girth gradually, allowing your body to adjust to the massive size. Apply generous amounts of high-quality water-based lubricant to both the plug and your anus before attempting insertion. Cockringshop specialise in products for men and couples exploring extreme play, so if you're new to large sex toys, consider starting smaller and building up over time. Increase the stretching slowly while maintaining constant lubrication throughout your session. Never rush the process—your body needs time to accommodate this level of girth safely.

How to use it

Preparation is essential. Apply plenty of water-based lube to the plug and your anus, then begin insertion slowly, letting your body adjust to the circumference. Once the plug settles into position, you can experiment with movement and positioning to find the angle that maximises both comfort and the incredible fullness this massive plug delivers. Adjust your depth and angle gradually as your body relaxes further into the stretch.

Once inserted, the hollow tunnel opens additional play possibilities. Experiment by incorporating fingers or other sex toys through the hollow centre to create layered sensations of stretching plus internal penetration. After use, clean the plug thoroughly with warm water and a mild soap or toy cleaner, then dry completely before storage. Extended sessions reveal how well the ergonomic base supports comfortable wear, even during intense play.

Feature breakdown

Who it suits

This plug is built for people with significant experience using large anal toys and extreme stretching. If you're training for fisting or crave the most intense sensations possible, the massive circumference makes it excellent for your practice. Solo users who find regular plugs too small or boring will love how this delivers overwhelming fullness. Couples exploring unique double penetration scenarios will appreciate the hollow design's possibilities for adding fingers or sex toys during partnered play.

Skip this plug if you're new to anal play or still building up to larger sizes. If you have not used significantly sized sex toys before, starting with something smaller will be far more comfortable and safer. Extreme circumference requires genuine experience and patience. If you prefer firmer, more rigid support, you may want to explore other materials first.

How it compares

Silicone plugs like the Tunnel Fuckplug 4 flex and conform to your body, offering comfort during extended wear and smooth insertion with proper lubrication. They're ideal for extreme stretching because the material gives slightly while still delivering intense fullness. Slide Easy Prostate Plugs focus on prostate stimulation with a curved design rather than extreme girth. If you're seeking maximum circumference and dual-access play, this silicone tunnel design outperforms standard tapered plugs. Choose based on whether you prioritise extreme stretching or targeted internal massage.

What you can use it with

Pair this plug with Cock Ring Sets for comprehensive stimulation during extended sessions. While the plug delivers intense internal sensation and fullness, a cock ring maintains erection and adds external stimulation, creating a complete experience that builds arousal from both directions. The combination intensifies orgasms by layering internal pressure with external penile engagement.

More from Oxballs

Oxballs specialises in extreme BDSM equipment and oversized anal sex toys designed for advanced users. Oxballs offers a full range of stretching plugs, cock rings, and extreme play gear for people serious about pushing boundaries safely.

Read more before you buy

Before your first extreme stretching session, read up on proper technique and safety. Butt Plug has a comprehensive guide covering insertion, lubrication, positioning, and care for all anal toys.

Why buy the Tunnel Fuckplug 4 Extra Large by Oxballs

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