For the most intense ball-crushing play get this acrylic cock and ball crusher. This cock and ball board can apply pressure to both the cock and balls or just the balls. by simply ing your cock and balls through the back hole. Then screw down the wingnuts to apply more and more pressure. If you desire you can have only your balls crushed you can simple slip your cock through the handy cock hole on the other acrylic board. Both plates of the board are made of durable clear acrylic. Size Width: 5 Length: 7 Cock Hole Diameter: 1.75 Ball Hole Diameter: 2.25