MAXSOINS Finger Stretcher Hand Resistance Band Size: diameter of about 11cm, Color: blue, apple green, Hardness: 30LB (slightly soft). Ergonomically Designed to Fit Small to Large Hand Sizes. Perfect for Men, Women, Seniors and Teens Ideal for Athletes and Sports Enthusiasts Who Want to Increase Their Hand, Wrist, Forearem and Finger Strength for Rock Climbing, Shooting, Bodybuilding, Golf, Tennis etc Includes: three (3) therapy balls (soft, medium, and firm) makes the ACF Hand Exerciser a Popular Choice for Those With Arthritis, Rheumatoid Arthritis, Tendonitis, Carpal Tunnel, Tennis Elbow and Those Recovering From a Broken Wrist and Tendon Surgery Great Hand Strengthener for Musicians Including Drummers as well as Guitar, Piano and Violin Players