Flexsolate™ perfected the world’s first grip free technology for the fitness and the bodybuilding industry more than thirteen years ago, with the creation of our GRIP FREE CUFF. This product is regarded as the most efficient way to help isolate, tone, and build muscle. The Flexsolate™ grip-free cuffs can eliminate gripping from all upper body exercises. Using the most up-to-date SEMG laboratory testing at the North Idaho Bio-Performance Institute of Northern Idaho Physical Therapy, Flexsolate™ has proven when you eliminate the grip from your exercise you can expect an increase in muscle stimulation of up to 400% in the targeted muscle.