This three-pack of The Gasket thin circle cock rings are made from super stretchy silicone to fit perfectly and enhance your size and thickness. They're dishwasher safe and completely phthalate-free and body-safe.Soft, Stretchable SiliconeDelays Ejaculation and Prolongs ErectionEnhances Size and ThicknessEasy to Clean, Top Rack Dishwasher-SafeHypoallergenic, Nonporous, and OdorlessPhthalate-Free, Body-Safe