This set of rings come with 3 different sizes. These cockrings can be used together or separately: at the base of the genitals, around the testicles, or around the penis for a stronger and longer-lasting erection.  Soft 100% silicone texture is compatible with water-based lubes. 

Also great to use as O-rings in a strap on harness. 

Diameters: 0.87", 1", and 1.2" (2.2 cm, 2.6 cm and 3 cm)