In three sizes that let you and your partner work your way up to more intense constriction, Sex & Mischief's Cock Ring 3 Pack is versatile, body friendly, and certainly mischievous. Cock rings work by constricting blood flow, once the penis of your choice is hard and ready, simply slip a ring over the base to keep it that way. If you're new to this type of sexual tool, you'll want to start off with the largest size and work your way down. If you're already well-versed in cock ring use, you can try using the larger ring under the testicles as well as over the base of the penis. Made from sturdy Nitrile rubber, these are latex free and compatible with water or silicone based lubricants.