The Bionic Tusk Chastity Cage KitThe Bionic Tusk is a lightweight chastity cage with a spiked interior and stainless steel lockable catheter. The interior of the cage has a raised spike design, that the wearer will be fully aware of when wearing, this design along with the double lock feature will prove a real test. We say double lock feature as the chastity cage and base ring lock together and the urethral tube can also be locked in place. The catheter lock is a clever design, as