Manufactured from medical-grade, nickel free stainless steel.Stainless Steel Chastity with Urethral Stretching Penis Plug ZA143.The device comprises: cage length about 3 inches, 1.3 inches wide, 4 inches in circumference, ring diameter is: 48mm, a copper padlock. There is a rubber hose 4 cage, tube length of about 100mm, a diameter of about: 6mm, also presented a 150mm long hose. Weight: 150 grams.