Use in rehabilitation and training of hands, fingers and wrists.

• Color coded resistance levels for variability.
• Light for children, geriatrics, beginning strength programs, arthritics and for carpel tunnel. 
• Medium is most popular for all around use such as strengthening, flexibility, injury rehabilitation and sports fitness.
• Heavy is for the more advanced stages of rehabilitation, sports strengthening, fitness and injury prevention.
• Measures 7" (18cm) in diameter and weighs 8 oz. (0.2kg)
• Includes illustrated manual.