Ring duo made of medical silicone for men, in medium size, which contributes to maintaining erections for longer. They are compatible with the use of condoms and lubricants. They come in blue colour and are easy to put on. They act as a double ring for the penis and testicles. They help to increase rigidity and duration through comfortable pressure on the genital area. They are water sanitizable and reusable. 100% submersible and hypoallergenic.