Fabrication Enterprises Inc. Big Grip Hand Exerciser - The Norco Rainbow Hand Exerciser is perfect for any fitness-lover or physical therapy patient looking to work out their hand and forearm muscles. Available in four different resistances to cater to any fitness level, the hand exerciser features easy-to-grip plastic handles with non-slip rubber grips that are spaced 2.5 inches apart for a comfortable hold. These spring-loaded hand exercisers come in 10 lb., 15 lb., 30 lb., and 60 lb. resistances. All colors correspond to their respective resistance weight, allowing you to easily choose the right exercise level for you. The 10 lb. resistance is available for those just starting out, while the 60 lb. resistance supplies a challenging workout for stronger hands and forearms.