Theraband Hand Ball Exerciser - Green (XL) 26043 Product DescriptionTheraBand® Hand Exercisers are specially formulated exercisers provided in a progressive sequence of five translucent colors and in two sizes. They’re used for hand, finger and forearm strengthening, as well as hot and cold therapy.The softer yellow and red models fill the gap between putty and spring devices and they’re not as messy as putty. Progressive resistance in different levels of compression allow each exercise to be geared to the patient. Use the standard size hand exerciser for smaller hands and the extra large size for larger hands or for people who have limited hand mobility. Place a Hand Exerciser into the microwave or refrigerator for hot or cold use.Soft hand exerciser ball for improving grip strength, hand dexterity, and motor skillsCan be heated or cooled to provide therapeutic relief while performing ExerciseGreat training tool for rock climbers, golfers, tennis players, piano players, and guitar players to improve hand strength and function in the fingersNon-messy alternative to hand putty or stress ballsStandard: 2″ diameter; X-Large: 2″ wide x 3.5″ long