Tunnel Fuckplug 4 Extra Large by Oxballs

Tunnel Fuckplug 4 Extra Large by Oxballs is a hollow silicone butt plug engineered for extreme anal stretching and advanced play. The 1.75-inch tunnel opening delivers intense fullness whilst maintaining central access, making it suited to experienced users seeking sensations beyond solid plugs.

What it is and how it's made

Tunnel Fuckplug 4 Extra Large by Oxballs is a well-made silicone hollow butt plug built specifically for extreme stretching play. The body-safe silicone is non-porous, durable, and made to withstand intense use. What distinguishes it from conventional butt plugs is the large tunnel opening running through its centre—creating simultaneous sensations of fullness and access that solid designs cannot replicate.

The ergonomic base anchors it securely during insertion and extended wear, whilst the substantial 10-inch circumference demands serious preparation and relaxation. This size represents the apex of stretching toys, combining the intensity of extreme girth with the unique psychological and physical impact of being stretched wide open while remaining completely hollow.

Key features

• Hollow tunnel design: The 1.75-inch opening creates unprecedented access and fullness in a single sensation, enabling creative play impossible with solid plugs.
• Extreme dimensions: 4.5-inch insertable length and 10-inch circumference deliver intense, boundary-pushing stretching for advanced users only.
• Body-safe silicone: Non-porous material resists bacteria, tears, and discolouration, maintaining integrity through rigorous play sessions.
• Secure ergonomic base: Wide, flat base prevents slipping during insertion and ensures comfortable, stable positioning for hours of wear.
• Bold visual design: Vibrant red colour adds psychological intensity and creates striking contrast against skin during play.

Dimensions and materials

• Material: 100% medical-grade silicone, non-porous and body-safe for extended anal play without risk of material degradation.
• Insertable length: 4.5 centimetres of internal depth, designed for deep positioning within the anal canal.
• Circumference: 10 inches (approximately 25 centimetres) at the widest point, creating substantial fullness and intense stretching sensation.
• Hollow opening diameter: 1.75 inches (approximately 4.4 centimetres), allowing simultaneous stretching and central access for partner interaction or additional toys.
• Base dimensions: Ergonomic anchor point approximately 3 inches wide, designed for stability and comfort during extended wear.
• Weight: Lightweight despite size, making extended training sessions physically sustainable.
• Colour: Bold red finish; compatible with silicone-based lubricants only.

How to use a butt plug step by step

Start with thorough warm-up using smaller plugs or fingers to relax the anal sphincter gradually—this toy's extreme size demands serious preparation. Apply generous silicone-based lubricant to both the plug and your opening. Position yourself comfortably (kneeling or lying on your side), relax your pelvic floor muscles, and guide the tapered tip slowly inward. Move at your own pace; this size takes time. Once fully inserted, the ergonomic base sits against your body, anchoring it securely.

For first-time users at this size, expect the initial sensation to be intense. Many find that Beginner Prostate Beads offer valuable progression experience before attempting extreme sizes. Take breaks if needed, breathe steadily, and never force insertion. Removal is simpler—relax, bear down gently, and guide it out at your own speed. Clean thoroughly after every session with warm water and mild soap, then dry completely.

Who should buy it

Care and storage

Wash the plug thoroughly with warm water and mild soap immediately after every use, paying close attention to the hollow tunnel opening where bacteria can accumulate. Rinse completely and dry with a lint-free cloth. Store in a cool, dry place away from direct sunlight and extreme heat, ideally in a dedicated toy pouch. Inspect regularly for cracks or tears. Silicone-based lubricants are compatible; water-based and oil-based lubricants will degrade the silicone over time.

Want to know more?

Understanding anal physiology, progressive training, and realistic expectations is critical for this level of play. Read more in our guide Butt Plugs For Gays, which covers stretching safety, warm-up protocols, and common mistakes advanced users make.

What to expect

First insertion is intense—the 10-inch circumference will feel enormous, even after months of preparation. Most users need 15–20 minutes of gradual relaxation before full insertion. The hollow centre changes the sensation profile completely compared to solid plugs; you'll feel stretched yet accessible simultaneously, which takes adjustment but becomes deeply satisfying once you acclimate.

This size requires quality silicone-based lubricant in generous quantities. Water-based alternatives will dry too quickly and cause friction that risks tearing. Many experienced users apply lubricant in multiple layers during insertion rather than all at once. Removal typically takes longer than insertion as your body naturally resists.

Extended wear is achievable for experienced users, though the first sessions should be shorter—30–60 minutes—to allow your sphincter to adapt. The ergonomic base keeps it stable without slipping, which is essential at this circumference. Over time, the intensity diminishes slightly as your body trains, which is why many users progress further rather than plateau.

Cleaning the hollow tunnel thoroughly is non-negotiable. Silicone hardens over time if lubricant residue dries inside; regular deep cleaning with warm soapy water and a small brush keeps it fresh. Most users who stick with this toy report that the psychological impact of extreme stretching never becomes routine.

How it compares

Why you'll reach for it

Get ready for the most intense stretching sensation silicone can deliver. Tunnel Fuckplug 4 Extra Large by Oxballs combines extreme girth with unique hollow access, creating experiences solid plugs simply cannot match. Order it from Malechastity.com.au with discreet Australia-wide delivery and start exploring what true boundary-pushing anal play feels like. Body-Safe Materials, Honestly Described.