
Double Penetration Dildo Mythology Cobi Onyx with Rings
€23.99

Double Penetration Dildo Mythology Cobi Onyx with Rings
- Rechargeable
- Silicone
Mythology double penetration dildo with two built-in rings, one for the penis and one for the testicles, made for anal and vaginal stimulation at the same time. It's 15.5 cm long in total and flexible. It's made of silicone, so use a water-based lubricant.
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Compatible lubricant: water-based. Silicone-based lubricants can damage the silicone of this product.
Your parcel arrives in a plain box and the sender does not mention Loviux
Mythology Cobi Onyx Two rings and a flexible dildo.
You put the rings on your penis and testicles and the dildo comes with you, for penetration in two places at once. The penis ring is 3 cm in diameter and the testicle ring is 5.5 cm. Clean it with warm water and mild soap.
- 15.5 cm
- Two rings
- Flexible
- Water-based lubricant

The essentials
Mythology Cobi Onyx: what you need to know before you buy
Is it for you?
Who the Mythology Cobi Onyx is for, and who it isn't
It suits you if…
- You want double penetration, anal and vaginal at the same time, wearing the dildo with the rings.
- You'd rather have a flexible dildo than a rigid one.
- You like a modest size, 15.5 cm long in total.
- You already use cock rings and know how they feel on you.
Better look elsewhere if…
- You don't want to wear it: it's used with its rings on the penis and testicles.
- You only use silicone lubricant. With a silicone toy, a water-based one is better.
- Rings of 3 and 5.5 cm in diameter don't fit you. They come built into the toy.
Size and measurements
Mythology Cobi Onyx size: about the length of a BIC pen
It's 15.5 cm (6.1 in) long in total, about the same as a BIC Cristal pen, and 13.5 cm (5.3 in) goes in, a little more than the height of a 33 cl can. It's 2.8 cm (1.1 in) thick, a little more than a two-euro coin. The penis ring is 3 cm (1.2 in) in diameter, also a little more than a two-euro coin, and the testicle ring is 5.5 cm (2.2 in), between a table tennis ball and a tennis ball.
Length, to scale
BIC Cristal pen about 15 cm (5.9 in)
This product 15.5 cm (6.1 in)
Medium banana about 18 cm (7.1 in)
Our usage tips
How to use the Mythology Cobi Onyx
- Wash it before use with warm water and mild soap.
- Apply water-based lubricant to the dildo and the area.
- Put the rings on, the small one on the penis and the big one on the testicles. A little lubricant helps them go on.
- Go in slowly and pause as you go to check everything feels right. The rings stay outside.
- Take it off and wash it as soon as you finish.
Cleaning
With warm water and mild soap, before and after every use. Dry it well and store it apart from other toys.
Our tips
- If it hurts, stop.
- Take the rings off if you feel pain, cold, tingling or the skin changes colour, and don't wear them for long.
- Don't move the dildo from the anus to the vagina without washing it first.
- If you use a latex condom, don't use oil-based lubricants.
- Agree on a signal to stop.
What the science says
What the science says about lubricant in anal play
The studies we cite didn't test this dildo. What has been studied is the use of lubricant in anal play.
Over 5 weeks they used one of six water-based or silicone lubricants. With the water-based one they reported more pleasure and satisfaction in anal sex than without lubricant. The study is about anal sex with a penis, not toys.
Specifications
Mythology Cobi Onyx technical specifications
- Total length
- 15.5 cm (6.1 in)
- Insertable length
- 13.5 cm (5.3 in)
- Thickness
- 2.8 cm (1.1 in)
- Cock ring
- 3 cm (1.2 in) diameter
- Testicle ring
- 5.5 cm (2.2 in) diameter
- Material
- Silicone
- Flexibility
- Flexible
- Use
- Anal and vaginal stimulation at the same time
- Lubricant
- Water-based
- Cleaning
- Warm water and mild soap
- Colour
- Black
- Brand
- Mythology
Questions
Mythology Cobi Onyx: frequently asked questions
What is the Mythology Cobi Onyx for?
Anal and vaginal stimulation at the same time. It has a ring for the penis and one for the testicles, so you wear it.
How big is the Mythology Cobi Onyx?
15.5 cm (6.1 in) long in total, of which 13.5 cm (5.3 in) goes in, about the height of a 33 cl can. It's 2.8 cm (1.1 in) thick, a little more than a two-euro coin, with rings of 3 and 5.5 cm (1.2 and 2.2 in) in diameter.
Can you use the Mythology Cobi Onyx for anal sex?
Yes, it's made for anal and vaginal stimulation at the same time. The rings stay outside. Use it with water-based lubricant, go slowly, and wash it before moving it to the vagina.
What lubricant works with the Mythology Cobi Onyx?
A water-based one. It's silicone, and water-based lubricant doesn't damage that material.
How do you clean the Mythology Cobi Onyx?
With warm water and mild soap, before and after every use. Dry it well before storing it.
Before publishing this product sheet we check that every figure is in its sources and that what it says holds up. Product sheets that do not pass this check are not published. How we verify information ›
Product sheet updated on 3 November 2026
Questions & Answers
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Reviews
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