Build Your Own KINK3D Cobra Chastity Kit
Build Your Own KINK3D Cobra Chastity Kit
Build Your Own KINK3D Cobra Chastity Kit

Build Your Own KINK3D Cobra Chastity Kit

£144.99
  • Build your perfect fit
  • Choose your exact size
  • Interchangeable ring system
  • Lightweight PA12 nylon build
  • Smooth, sealed surface finish
  • Perfect for long-term wear
How it works
Build your perfect fit in a few simple steps. Choose your cage, base ring fit, and ring size to create something that feels right on your body.

Every option changes how it sits, how it feels, and how secure it is, so take a moment to get it dialled in properly.
Choosing your cage
Cobra cages range from shorter styles like the Baby Cobra to longer fits like the S, R, and BFG.

Shorter cages feel tighter and more restrictive, while longer cages give more room and a fuller, more relaxed fit.

For the best result, choose a size close to your normal smallest flaccid length. If you are between sizes, most people prefer going slightly shorter for a more controlled feel.
Cage fit advice
A good fit should follow your natural flaccid size. The cage will gently compress to hold everything in place and keep the head positioned correctly.

If the cage is too short, it may not fully cover you. If it is too long, the head may not sit properly in the tip.

Measure under normal conditions and avoid measuring when even slightly aroused, as this can lead to choosing a size that feels off in real use.
Measuring advice
Getting your measurements right is what makes the difference between a good fit and something that feels off. Take your time and do it properly.

For cage sizing, measure your flaccid length when you are fully relaxed. Let everything hang naturally and measure along the top from the base to the tip. Do not measure when even slightly aroused, as this will lead to choosing a cage that feels too large in real use.

Avoid measuring right after a hot shower or when it is very cold. Both can distort your natural size. The goal is to find your typical smallest flaccid length, not the absolute smallest you ever reach. Measuring a few times across the day will give you a more reliable result.

For base ring sizing, avoid using a tape measure or guessing based on width. This often leads to choosing a size that is too large. If you have used other devices before, use that experience as your reference point. The right size should feel snug and secure without pinching or cutting into you.

The fit should hold everything comfortably in place. Too tight can cause pressure and discomfort, while too loose will not stay secure. If you are unsure, stay in the middle range and adjust over time as you learn what works best for your body.
Base ring fit
This is what locks everything in place, so getting it right makes all the difference to how it feels and performs.

Start by choosing your ring type. Standard is the go-to and works for most. Curved relieves pressure underneath for a more natural feel, while XD sits slightly forward to create a tighter, more secure hold.

Next, choose your size. You want a snug, secure fit without any pinching or discomfort. Too tight can feel restrictive in the wrong way, while too loose will not hold properly.

Sizes range from 1½" (38.1 mm) to 2⅜" (60.3 mm). If you are unsure, stay in the middle. Sizes 1 to 5 work for most. Size 0 is very tight, while 6 and 7 are much larger and best left if you know you need them.
Cage only or full kit
Choose how you want it delivered.

Cage Only includes just the cage, giving you full control to pair it with your own setup.

Full Kit comes ready to go with a matching base ring, lock, and two keys, so everything is set up and ready the moment it arrives.
First time?
If you are new, keep it simple and focus on comfort and control. Start with a standard cage size, Standard ring type, and a mid-range ring size.

Once you have worn it and understand how your body responds, you can fine tune your setup to get it exactly how you want it.
Add-ons: £0.00
Total: £0.00

Pairs Perfectly With This

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Discreet Shipping

Your order arrives in plain, unbranded packaging with no mention of contents. Total privacy from checkout to delivery.

Description

Please note that if you want a base ring, you must specify the style and size as all components are separate.

Welcome to KINK3D COBRA, where you'll discover total comfort so you barely know it's there except when you're reminded. Each piece is 3D printed in the United States using aerospace grade manufacturing.

When measuring flaccid length, allow the penis to hang naturally. Measure along the top side of the penis from the base, where it meets the body, to the tip. It is best to use a cloth tape measure or a piece of string which can then be measured using a standard ruler or tape measure.

We recommend measuring several times during the day under normal conditions, not immediately after a hot shower and not when it is extremely cold.

The goal is to find your typical smallest flaccid length rather than the absolute smallest size you ever reach.

The advice on this page is a best guess. Everyone’s anatomy is different and results may vary.

Length Advice

In our experience, customers are happiest when their Cobra cage closely matches their natural flaccid length. If the cage is too short, it may hang away from the body and only partially cover the shaft. If the cage is too long, the head of the penis may not sit correctly in the head section of the cage.

Getting a new chastity cage can be exciting, but it is important that you are not partially aroused when taking your measurements. This can lead to overestimating your size.

If you are between two sizes, most customers tend to prefer choosing the slightly shorter cage.

Width Advice

The Standard width works well for most users. If you have a thinner than average penis or have found other devices loose in the past, the Narrow option may be a better fit. If you have a thicker penis or have struggled fitting into other devices, the Wide option may be more suitable.

About the Cobra Chastity Cage Kit

With the Build Your Own option you can select the exact ring size, cage size and gap that best fits your body. Whether you are looking for a secure everyday fit or a setup designed for extended wear, you can configure the cage exactly how you want it.

You can also choose your preferred lock style, colour and optional upgrades such as the Airlock or numbered locks for additional security.

The Cobra is widely praised across kink communities and forums for its comfort and practicality. Its open design allows for improved airflow and easier cleaning, making it suitable for both beginners and experienced long term users.

Delivery & Returns

Delivery

Royal Mail Tracked 48
Delivery time: 2 to 5 working days
Price: £4.95 (Free on orders over £50)

Express Delivery
Order before 12 noon Monday to Thursday
Delivery time: Next working day
Price: £5.95

Europe Shipping | All Duties Paid
Delivery time: 2 to 7 working days
Price: £30 (Free on orders over £130 up to 2kg)

USA Shipping | All Duties Paid
Delivery time: 3 to 8 working days
Price: $40 (Free on orders over $140 up to 2kg)

Same Day Dispatch

Place your order before 12 noon Monday to Thursday and we will dispatch it the same day. Orders placed on Friday or over the weekend are dispatched on the next working day, usually Monday, excluding bank holidays. Even the UberKinky packing team needs time off occasionally.

Discreet Packaging

All orders are shipped in plain, discreet packaging with no indication of the contents on the outside of the parcel.

Payment Privacy

Your order will appear on your bank statement as Libertybelle UK Limited to keep your purchase private.

Returns

If you are not completely satisfied with your purchase, you can return it within 30 days of delivery.

Faulty or damaged items receive a full refund. If the item is unsuitable or you change your mind, a small £2 postage deduction may apply.

Returned items must be unopened, unused, and in their original packaging in a resaleable condition.