From Doc Johnson - The Perfect Present is a three-pack of thin cock rings made from soft, stretchy silicone for easy placement. Rock Solid cock rings enhance size and thickness for longer, harder erections, and are completely body-safe. Soft, Stretchable Silicone Delays Ejaculation and Prolongs Erection Enhances Size and Thickness Hypoallergenic, Nonporous, and Odorless Phthalate-Free, Body-Safe