TUF-FIST Hand Grip Trainer & Strengthener (Set of 2 Rings: 40 lb and 50 lb Weight Resistance) Odor-free, Long-lasting Silicone - For Hand, Forearm, Arm, Bicep, Wrist, Finger - Durable Construction - Use Anywhere, Anytime - Great for Golfers, Lifters, Batters, Swimmers, Fencers, Tennis Players, Cyclists and for Physical Rehabilitation TUF-FIST Hand Strengthener / Trainer Set of 2: 40 lb and 50 lb Resistance For Arm, Bicep, Forearm, Wrist, Hand, and Finger Strengthening No odor SILICONE long-lasting construction Portable and Easy to Use - Take Anywhere, Use Anytime!