rehband power line knee support 7790 7mm - small - black/gray - knee compression sleeve - adjustable acl knee brace for running, power sports & powerlifting - provides stability & comfort - 1 sleeve rehband the perfect choice for all power athletes that wish to protect the knee against overuse during training and competition. due to the 7 mm neoprene, the knee support allows high compression of muscles close to the joint. in combination with two elastic straps, it supports performances, stabilizes the knee joint and protects against overuse. this high-quality support was specially developed to meet the demands of power lifters and body builders.