The Chrome 2 1/2 CB-6000 Cock Cage and Lock Set offers the utmost in comfort and security. The ring design consists of three interlocking pieces that fit together like a puzzle. The two guide pins hold the top pieces together. The oval locking pin goes through the middle recessed hole connecting the cage portion to the ring. The flat design of the rings is extremely comfortable and secure. The finish of the CB-6000 Designer Collection is an exceptional durable overlay on our lightweight medical grade polycarbonate material. The cage portion is vented for hygiene and has a bottom opening allowing use at urinals. The different size rings and spacers included in each package allow you to customize your fit to your individual needs. The CB-6000 Designer Collection restricts you from touching your genitals for sexual pleasure and gives the Keyholder control over the sexual fulfillment of both partners. Package includes: 1 cage portion; 5 different size rings; Locking pins and spacers; One brass padlock; Five individually numbered plastic locks, Handy black zippered carrying case, and Numbered plastic locks included allow wearer to go through metal detectors without setting off alarms. 2 1/2 length 1 3/8 inside diameter cage - size small. 5 ring sizes - 1 1/2I.D., 1 5/8I.D., 1 3/4I.D., 1 7/8I.D., 2I.D.