This set of rings comes 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. 

Diameters: 1.3", 1.45", and 1.6" (3.2 cm, 3.6 cm and 4 cm)