Hollow tunnel butt plug with ribbed neck and see-through aluminium body for gradual fullness during anal play.
Key Features:
Hollow tunnel opening guides gradual entry for natural fullness sensation
Ribbed neck texture sits behind widest section once plug settles
See-through aluminium body lets you watch placement during solo play
Nickel-free construction ensures body-safe comfort for extended wearing sessions
Compact sixty-millimetre length fits discreetly under tight everyday clothing
The b-Vibe Hollow Tunnel Butt Plug by COTR Inc is an anal plug with an open centre, so the channel through its middle becomes part of the experience. A ribbed neck adds texture once the plug is in place, and the see-through body lets you watch how it sits. Made from nickel-free aluminium, it suits solo or partnered anal play.
Most butt plugs are solid, so the body fills the entry completely. This plug has a channel through its centre, and the gently contoured opening is shaped to guide entry. The intended result is natural pressure and gradual fullness rather than a sudden stretch. The ribbed neck sits behind the widest section, so the texture is most noticeable once the plug is seated. The metal body feels firm and consistent from insertion to removal. A steel butt plug is solid metal with no channel, so it offers a different kind of fullness.
| Type | Shape & Feel | Size Guidance | Material & Finish | Best For |
|---|---|---|---|---|
| Hollow Tunnel Butt Plug | Open centre with a ribbed neck | 63.5 mm long; 140 mm widest insertable | Nickel-free aluminium, see-through body | Anal play with a visual element |
| Silicone butt plug | Solid body with a softer, flexible feel | Varies by model | Soft, flexible silicone | Those who prefer a flexible body |
| Vibrating butt plug | Solid body with a built-in motor | Varies by model | Commonly silicone-bodied models | Added vibration during play |
| Tail butt plug | Solid body with a decorative tail | Varies by model | Usually solid, body-coloured materials | Playful styling with a solid plug |
Apply a generous amount of water-based lubricant to the outside of the plug and around the opening, as it keeps the aluminium body gliding smoothly. Line up the contoured opening with your entry and press in slowly, letting the shape guide the plug rather than pushing against resistance. Pause once the widest part is through, and settle into position before going further.
For partnered play, your partner can help steady the plug while you settle into position. For buzzing or pulsing, a vibrating butt plug offers motorised stimulation that this metal plug does not.
Wash the body as directed in the instructions supplied with it, and make sure it is completely dry before storing. Keep it in a cool place away from heat, and store it separately from other sex toys so the metal surface is not knocked or scratched.
If you own more than one plug, a tunnel plug can sit alongside solid styles in the same storage spot, provided each one is dry and clean before it goes away.
The open centre, ribbed neck and see-through body set this plug apart from solid designs in a single shape. Nickel-free aluminium and easy cleaning make it a practical choice for regular use.
The article Anal Plugs for First Timers covers how to choose a first plug and how to judge size before you buy, which is useful if you are new to this category.
Add the b-Vibe Hollow Tunnel Butt Plug by COTR Inc to your cart at Sex-Toy Australia and choose the open-centred design that suits you.
Sex-toy.com.au ships with Australia Post. We ship from Sydney.
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.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
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.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
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 the nearest depot location.
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
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 the local Australia Post depot.
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
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
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order. If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.
Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, sex-toy.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund too.
Featuring a channel running through its centre, the b-Vibe Hollow Tunnel Butt Plug delivers natural pressure and gradual fullness rather than sudden stretch. Nickel-free aluminium construction pairs with a ribbed neck that adds texture once seated, while the see-through body lets you watch placement. Measuring 63.5 mm long with a 140 mm widest insertable diameter, this plug suits solo or partnered anal play with a visual element most solid designs cannot offer.
Smooth firm metal glides consistently from insertion through removal, with the ribbed neck becoming most noticeable once the plug is fully seated. The contoured opening guides entry gradually, allowing your body to accommodate the widest section without sudden pressure shifts. Individual results may vary based on anatomy, sensitivity, and usage. Unlike soft silicone alternatives, aluminium maintains its shape and firmness throughout, creating reliable sensation for extended sessions without compression or material fatigue.
At 63.5 mm in length, the b-Vibe Hollow Tunnel Butt Plug remains compact enough for comfortable all-day positioning beneath clothing without obvious bulging. The smooth aluminium body produces no noise during movement, and the flared base keeps everything secure without shifting. Water-based lubricant ensures the metal surface glides smoothly during both insertion and removal, reducing friction sounds. Partnered play remains straightforward since the see-through body lets your partner monitor comfort and positioning throughout.
Those transitioning from solid plugs to tunnel styles find the contoured opening easier to accommodate than narrow insertions, while experienced players appreciate the unique visual element and ribbed texture. Partners exploring shared anal play benefit from the see-through design, which lets both of you watch positioning together. People seeking firm metal construction over flexible silicone discover the b-Vibe Hollow Tunnel delivers consistent pressure without compression. Couples prioritizing texture and visual feedback rather than vibration find this plug perfectly matched to those specific preferences.
Washing follows standard instructions supplied with the plug, and ensuring complete dryness before storage prevents any material degradation or discolouration. Cool, dry storage away from heat keeps the nickel-free aluminium in optimal condition, while keeping it separate from other toys prevents scratches or metal surface damage. The solid construction means no motors or batteries require maintenance, eliminating technical upkeep entirely. Multiple plugs store together easily provided each sits completely dry and clean, making organisation simple for collectors.
We ship same day on all in-stock orders placed before 12pm! Free shipping on all orders above $200.
All of our shipments come in discreet packaging ensuring those nosy neighbours will never know!
We ship our full range of products worldwide with fast dispatch for orders before 12pm Sydney EST!
Thanks for subscribing!
This email has been registered!