The Expand-Your-Hand Bands allow you to work in a dynamic range of motion for maximum grip strength and sparkling hand health. You'll want to train the extensor muscles of your hands to counteract all the squeezing you're doing when crushing grippers. As a top personal trainer tells his clients, "Get two sets - one for your car or office and one for home. Use both of them." Get ready to kiss that elbow pain goodbye! A fun, dynamic way to work your extensors. Helps you achieve muscle balance and prevent, reduce, or cure the sort of pains associated with arthritis, overuse, abuse, and carpal tunnel syndrome. These bands are color-coded to show the progressive levels of resistance. Great for warming up, prehab, rehab or just plain relaxing. Includes 10 bands. Made of latex-free rubber for greater stretch and longer life.