HAND GRIP STRENGTHENER & FINGER STRETCHER Why do You Need the Hand Exerciser? - Strengthen your finger, hand, wrist and forearm. - Help to recover in hand injury. - Relieve stress. For some of injury rehabilitaion patients. Hand injury, arthritis, carpal tunnel, tendovaginitis, fractured, broken wrist, and tendon surgery, etc. For some of athletes. Rock climbing enthusiasts, fitness, tennis, baseball, boxing, tennis, golf and shooting, etc. For some of musicians. Guitar players, bass players, pianists and violinists, etc. Package Included: 3 pcs hand grip strengthener (40LB, 50LB, 60LB) 3 pcs finger stretcher (6.6LB, 8.8LB, 11LB)