The Houdini Chastity Cage The Houdini is our answer for an all steel effective chastity device. This device is made from a single", stainless steel handcuff, which is permanently welded to a steel tube. The cuff locks around the cock and balls, and then the penis is enclosed by the tube," and protrudes out and downward at the end. The cuff is double-locking for security and safety. Click Here To Order