Robert Baraban Chrome Adjustable Hand Gripper 50/500lb grip strength

Robert Baraban Chrome Adjustable Hand Gripper. This is a must have for serious grip athletes. Over 50 adjustments that range from easier than a RB70 to harder than a RB400! Two springs of differing tension allow you to choose resistance levels from 50 to 500lbs. Solid steel and built to last. The perfect trainer to reach your hand gripper goals! Complete RGC calibration for RBA gripper + CoC comparison levels Weak Spring 1-1 = 11.4 kg 1-2 = 13.2 kg 2-2 = 14.6 kg ( ~ CoC Guide ) 2-3 = 16.2 kg 3-3 = 17.9 kg ( ~ CoC Sport ) 3-4 = 19.8 kg 4-4 = 21.9 kg 4-5 = 23.3 kg 5-5 = 25.7 kg 5-6 = 27.2 kg ( ~ CoC Trainer ) 6-6 = 30.5 kg 6-7 = 32.8 kg 7-7 = 35.4 kg 7-8 = 37.9 kg ( ~ CoC 1 ) 8-8 = 40.3 kg 8-9 = 42.2 kg ( ~ CoC 1.5 ) 9-9 = 45.6 kg 9-10= 47.0 kg 10-10 = 50.8 kg ( ~ CoC 2 ) Hard Spring 1-1 = 28.1 kg ( ~ CoC Trainer ) 1-2 = 31.4 kg 2-2 = 34.8 kg 2-3 = 39.3 kg ( ~ Hard CoC 1 ) 3-3 = 43.7 kg ( ~ CoC 1.5 ) 3-4 = 47.6 kg 4-4 = 52.4 kg ( ~ Hard CoC 2 ) 4-5 = 57.3 kg ( ~ CoC 2.5 ) 5-5 = 62.1 k