Adonis Silicone Ring Caesar Red. Ring is a sturdy erection enhancers for comfort and stamina. Pure Silicone. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials Silicone. Ring measures 1.25 inches in diameter. Bulk weight 0.1 ounce. Cock rings when worn around the base of the penis and testicles, many users find that cock rings increase sexual pleasure. Prolong rings, erection enhancement, climax control rings, cock rings.