This may be the perfect cockring: strong enough that it keeps you firm, and made of a soft, squishy rubber that won't pinch or dig into your skin. Who says that playing hard can't be super comfortable?
Elastomer is a durable, hypo-allergenic soft plastic free from phthalates*. Use water-based lube and wash with soap and water or toy cleaner. (*Phthalates (pronounced "thal-ates") are plastic softeners that are known to have carcinogenic properties. We do not recommend inserting them into the vagina or anus without a condom.)