CFF Pit Bull Gripper - Master Set(100lb, 150lb, 200lb, 250lb, 300lb) Build crushing Power with the Pit Bull Master Set Includes: One of Each 100, 150, 200, 250, 300 lb. Hand Pit Bull Grippers Handles are Crafted with high quality aluminum Build the huge forearms and crushing grip you have been unable to achieve by doing endless reps with plastic-handled hand-grippers. Pit Bull Hand Held Grippers are available in 100, 150, 200, 250, 300, & 400 lbs. Offered in 50 inch-force-lb. torque increments from 100 lbs. to 400 lbs. so that you can improve over time