BON4 Transparent Penis Cages will always have the perfect fit with their comfortable body and adjustable rings! The flexible light silicone material allows you to keep the device on during your normal activities The ergonomic design of this chastity device allows the wearer to keep it on while showering or during a visit to the toilet Internal cage length: 3.46″ (88 mm) Cage opening diameter: 1.37″ (35 mm) 4 Different silicone back rings 1.57″, 1.73″, 1.88″ and 2.04″ (40 mm, 44 mm, 48 mm and 52 mm) 2 Nylon pins, 2plastic locking straps and 5 individually-numbered plastic seal locks  Metal lock and key Comes in a black velvet carrying bag