MAXSOINS Hand Grip and Wrist Strengthener - Resistance from 50-350 lb Metal Exerciser for Hand, Forearm, and Fingers,Silver Stainless Steel Ergonomically solid aluminium handles with knurled coating for a non-slip grip,12 different strength levels for beginning, intermediate and advancedtraining (100 lbs-350lbs)Reasonable price and high quality Used for hand strength, stamina, rehab and injury prevention,Perfect to increase massive forearm muscles, hand endurance and dexterity,Provides resistance to help develop muscles in hands, arms, wrists, forearms, and fingers for increased strength A time-tested method for developing your hand grip for improved function and endurance in sports and weight lifting Great for improving daily function, such as opening and closing jars, or rehabilitation after an injury. Made with top grade, durable aluminum handles and high quality springs for a long-lasting exercise tool you can rely on.3 years of shelf life, 3 years of any quality problems. We assume all responsibility, free replacement!!! Please look for the brand of "MAXSOINS". Package Included: 1PCS Steeless Hand Grip,2PCS Sponge Soft Cover,1PCS Grip Exercise Ring (Blue Or Pink)