These Japanese Clover Clamps have small rubberized teeth at the business end that create a firm grip around the nipple. They will leave you sucking air sharply through your teeth. Is it pleasure, is it pain, or is it both? All we know is that it’s a cock-rousing, wickedly delicious sensation. Connect the Japanese Clover Clamps with a chain or attach weights, rope, or any other object your imagination comes up with. Start off slow and work your way toward longer and tighter training sessions. Don’t worry if he screams. It only means the training is working. Besides, look at that massive erection. He’s leaking bucketfuls of pre-cum so you know there’s pleasure coursing through his body. The Japanese Clover Clamps are stainless steel and measure 3.5 x 1.5 inches.