The Teardrop Cockring is worn around the cock and balls, but what makes this Cockring different is that it gently massages the perineum (the spot between the balls and anus) and other erogenous zones. The Teardrop Cockring can be worn different ways: The most common position is with the point facing upward to the rear so that it stimulates the perineum. Turn the ring around, pointing the tongue tip outward and UP so cupping your balls, creating a ledge of support. Small :Internal diameter 45mm Medium:Internal diameter 50mm Large :Internal diameter 55mm