This is a male chastity device that consists of a zippered black rubber pouch held in place by a thick, shiny, buckling latex cock strap.  The buckle is lockable so the Prison can be locked on.  The prison allows the genitals to be totally enclosed and confined, but still vulnerable to stimulation by touch, which will be felt through the rubber.  There is a hole at the end of the pouch which allows fluids to flow in and out.