This device may be used in many different ways. Some mistresses use it as a punishing device. Other find it fun while a slave wears the Punisher device during a long tease and denial session. This device can also be used to make a slave begging for a chastity belt. I'm sure that you will find your own way to enjoy this device.
The spikes are specially sharpened. They cause pain but do not damage skin easily.
During ordering process choose your size:
Scrotum ring (inner diameter): 43 mm, 45 mm, 47 mm, 50 mm
Penis ring: 27 mm, 32 mm
If you want other size, just ask
mm<=>Inch conversion tool: http://www.metric-conversions.org/length/inches-to-millimeters.htm