Jump Stretch Inc features the complete line of FlexBand exercise equipment. FlexBands were developed by former football coach Dick Hartzell.

FlexBands are the original continuous loop bands used by pro baseball, football and basketball teams, as well as powerlifters. They can also be found at most major colleges and universities across the country.

FlexBands are used in a variety of settings for strength training and rehab. The bands provide variable isotonic exercise, meaning that the pressure changes throughout the range of motion. The resistance increases as the lifter's joint angles improve, making this a safe and effective alternative training method.

FlexBands are 41" in length and come in six sizes with resistances varying from 5 pounds to 200 pounds per band, so they can be used by anyone. The difference between the sizes is the width of the bands with wider bands providing greater resistance.