Ultimate Grip Training Package. Includes SuperHuman Grip & Hand X Band A strong grip is essential for just about every sport. The SuperHuman Grip and can strengthen the adductors / flexion component of your grip but have you ever exercised the abductors / extension component of your grip. The Hand X Band was specifically designed to exercise & strengthen your expanding muscles, balancing all of that over-gripping. The Superhuman Gripper offers an adjustable resistance range from 22lbs to 70lbs. By Core Prodigy - Fitness Equipment Leader