Oxballs Tunnel Fuckplug 4 Extra Large combines a hollow tunnel design with silicone construction, featuring 4.5 inches insertable length and 1.75-inch opening diameter for advanced anal stretching and unique sensations.
Key Features:
Hollow tunnel design creates simultaneous fullness and openness sensations
Premium silicone construction body-safe for anal play
4.5 inches insertable length with 1.75-inch opening diameter
Ergonomic shape distributes pressure evenly across anal sphincter
Allows double penetration options and toy incorporation during sex
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Oxballs Tunnel Fuckplug 4 Extra Large is a hollow butt plug constructed from premium silicone, measuring 4.5 inches insertable length with a 10-inch circumference and 1.75-inch opening diameter. Designed for advanced anal play and extreme stretching, it combines ergonomic shaping with body-safe materials to deliver intense sensations for experienced users seeking expanded boundaries and unique hollow-tunnel experiences.
The Oxballs Tunnel Fuckplug 4 Extra Large delivers sensation through its distinctive hollow tunnel design, which creates simultaneous fullness and openness that solid plugs cannot replicate. The 1.75-inch opening allows for creative play scenarios, including double penetration options and the ability to incorporate other toys during use. The ergonomic shape distributes pressure evenly across the anal sphincter, making extended wear possible despite the plug's substantial dimensions.
Premium silicone construction ensures this plug remains body-safe, non-porous, and free from phthalates and harmful chemicals. The smooth surface maintains its luxurious feel through repeated use while resisting degradation from water, heat, and standard lubricants. For those seeking extreme stretching beyond standard plug options, our black butt plugs collection offers additional sizing and design variations.
| Insertable Length | 4.5 inches (11.4 cm) |
| Circumference | 10 inches (25.4 cm) |
| Opening Diameter | 1.75 inches (4.4 cm) |
| Material | 100% premium silicone |
| Color | Red |
| Waterproof | Yes, fully submersible |
Pairing the Oxballs Tunnel Fuckplug 4 Extra Large with tapered trainer butt plugs creates a progression system for gradually expanding capacity. Many users employ smaller plugs during warm-up sessions before advancing to the Tunnel Fuckplug 4, building comfort and stretch over multiple sessions. The hollow opening also enables unique double penetration scenarios during partnered play, where penetration through the tunnel creates sensations neither partner could experience alone.
After each use, clean the plug thoroughly by flushing warm water through the hollow tunnel to remove any internal residue. Wash the exterior with warm water and mild soap, paying special attention to the opening edges where debris may accumulate. For sanitization, the plug can be boiled for five minutes or placed on the top rack of a dishwasher without detergent. Allow it to air dry completely before storing in a cool, dark location away from other silicone products that might cause surface degradation.
Oxballs Tunnel Fuckplug 4 Extra Large is manufactured from premium, body-safe silicone that is non-porous, hypoallergenic, and phthalate-free. The material resists bacterial colonization while maintaining structural integrity through years of use. Its flexibility allows gradual accommodation of larger sizes without cracking or tearing, making it suitable for progressive training. Silicone's inert composition ensures compatibility with water-based and hybrid lubricants while remaining safe for all bodies.
This plug suits advanced anal enthusiasts with prior experience using large or stretching toys who actively seek extreme sensations and significant size progression. It appeals to people comfortable with extended wear sessions, training protocols, and the psychological intensity of substantial fullness. Those interested in double penetration scenarios or incorporating other objects during play will find the hollow design particularly valuable. This product is ideal for experienced users ready to push established boundaries rather than beginners exploring basic anal play.
For those who have exhausted what solid plugs can deliver—where even the largest standard toys feel insufficient for the intensity they crave—the hollow tunnel design fundamentally changes what anal play can feel like. The opening creates simultaneous sensations of expansion and access that solid plugs cannot replicate, producing a psychological and physical experience that feels genuinely novel rather than simply larger. For experienced users frustrated by reaching the limits of conventional sizing, discovering that a plug can offer both extreme circumference and functional openness shifts what they thought possible within their established preferences. The hollow design transforms the plug from a static insertion into an interactive tool, enabling double penetration scenarios and creative combinations that turn solo exploration into something that feels genuinely different. For those ready to move beyond standard progression, this specific design opens possibilities that conventional extreme plugs do not provide.
Our independent testers evaluated the Oxballs Tunnel Fuckplug 4 Extra Large for material durability, insertion comfort despite its substantial dimensions, and the functionality of the hollow tunnel design during extended wear and partnered scenarios.
Testers confirmed that premium silicone construction maintains structural integrity through repeated insertion and cleaning cycles without surface degradation. The ergonomic shape distributed pressure effectively, and the generous opening functioned as designed for double penetration scenarios. Individual results may vary based on anatomy, experience level with extreme sizing, and personal comfort with extended wear sessions.
| Product | Unique Advantage | Key Difference | Choose This If You Want |
|---|---|---|---|
| Oxballs Tunnel Fuckplug 4 Extra Large | Hollow 1.75-inch opening with 10-inch circumference for double penetration | Only option combining extreme size with functional hollow design | Extreme stretching with unique double penetration capabilities |
| Electro penis plugs | Electrical stimulation combined with insertion for sensation variation | Adds electrical current element absent in standard plugs | Electrostimulation alongside anal play for layered sensation |
| Small butt plugs | Beginner-friendly sizing for initial exploration and comfort | Significantly smaller circumference and insertable length for progressive training | Graduated progression toward extreme sizing over multiple sessions |
| Remote control butt plugs | App or remote-controlled vibration for hands-free or partnered control | Adds vibration and wireless control options for dynamic sensation | Vibration combined with insertion and partner-controlled stimulation |
Explore our prostate beads collection to discover additional anal play options beyond plugs.
Understanding proper warm-up protocols and gradual progression significantly improves comfort and reduces risk during extreme anal play. Incorporating breathing techniques and recognizing the difference between productive stretch sensation and pain signals allows safer exploration of larger sizes. Our comprehensive guide to butt plug selection and use covers progression strategies, material safety, and techniques for maximizing comfort during extended wear.
Ready to experience extreme anal play with the Oxballs Tunnel Fuckplug 4 Extra Large? This premium hollow plug is available through Adultsmart with discreet Australia-wide shipping in plain packaging. Order now and prepare for sensations that redefine your understanding of intensity and fullness.
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All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
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Shipping Transit Times (Including Free Shipping)
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All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
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Generally, orders are processed and shipped the same day or next Business day.
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All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
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Exceptions / non-returnable items
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Refunds
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Please remember it can take some time for your bank or credit card company to process and post the refund too.