When the mood is right but the Cock Ring is wrong, get the right size that holds on to your dong. The Sex and Mischief Nitrile Cock Ring come in three different sizes. They are ideal for harnesses that use straps and can also be used for cock and ball toys! The Ring of Power. I do love my man, and I really love to tease him. He's so compliant and eager to please once I wind him up just right. The rings do a good deal of the work, but the art is in the seduction. I like to rest my foot between his lap at restaurants, massage his manhood just a bit in the movie theater, grind my knee into him on the dance floor and whisper naughty things to him in front of his friends. He did not want to wear the rings to the party at his boss's house, but I managed to convince him. We arrived a little early. I wanted him to squirm all night. Materials: Nitrile (NBR), rubber latex free. Includes: 3 rings, 1.5 inches, 1.75 inches, 2 inches.