Dr. Joel Kaplan Silicone Support Rings Trio. Large ring 1.75 inches. Medium ring 1.5 inches. Small ring 1.25 inches. Sturdy, stretchy all-purpose Sta-Hard rings. 3 sizes included. Safe and pure for body and pleasure. Made using phthalate free materials: Silicone. Bulk weight 1.3 ounces.
Silicone - Silicone is a synthetic compound best known for its ability to retain heat. Silicone is non porous which makes it hypoallergenic and easy to clean and sterilize by boiling or putting it in the dishwasher. Silicone has no detectable odor.