This steel Ball Clamp is designed to apply that pressure easily.
Simply place the testicles between the two crossbars and tighten the screws.
You can create a plump-look for the testicles or apply more direct pressure.
The highly adjustable clamp allows you to discipline
your partner‘s balls, as you desire.
The valid Length of Crossbars is 1.69’’ (43mm),
The Diameter of Crossbars is 0.43’’ (11mm),
The valid Length of Adjustable Screws is 3.07’’ (78mm),
You can see the detailed size on the picture.