The CB-6000 restricts you from touching your genitals for sexual pleasure and gives the keyholder control over the sexual fulfillment of both partners. The ring design consists of three interlocking pieces that fit together like a puzzle. The flat design of the rings is extremely comfortable and secure. The CB-6000 is made of medical grade polycarbonate material. It is lightweight, hypoallergenic and durable. The cage portion is vented for hygiene and has a bottom opening allowing use at urinals. The different size rings and spacers included allow you to customize fit to individual needs.Measures 3.25 in. long, with a 1.325 in. inside diameter cage. The inside diameters of the rings is 1.5 in., 1.625 in. 1.75 in., 1.875 in. and 2 in. Numbered plastic locks will pass when the wearer goes through a metal detector.