I purchased one of the Metal Cock and Ball Shackles for my worthless slave. I placed it around it's ( I refer to my slave as "IT" since it is allowed to play with it's self) ball sack and instead of using a padlock I heated up a drift pin and drove it into the latch for the lock then peened the pin so it will never be able to be removed. Now my slave who use to be able to get out of other ball rings is set for life. Greatest device. Watch for more reviews of eXtreme Restraints and their effect on my slave. Master Rob