Check the listing for details. Handmaster Plus 3 Piece Physical Therapy Hand Exerciser (Colours May Vary). Condition: New. Listed at 24.99 USD. The Handmaster plus has received rave reviews in the treatment, rehabilitation and prevention of tennis elbow, osteoarthritis, osteoporosis, tendonitis, dequervain's syndrome, dupuytren's contracture, repetitive stress injury (RSI) and much more. It is used to strengthen and balance the muscles of the finger, thumb, hand, wrist, forearm and elbow for performance in sports, music and the workplace, as well as to maximize injury recovery and/or to prevent injury. The hand grip strengthener that strengthens all 18 hand muscles in one easy exercise The hand exerciser that equalizes balance between the flexor and extensor muscles The unique hand exercise that stimulates max blood flow for performance, wellness and rehab All 3 balls are of same size Pack Includes (x3) Soft , Medium & Firm Flex Balls(x6) Soft , Medium & Firm Finger CordsInstructions for Use