Stretch training bands 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. Stretch training bands are 42” in length and come in four sizes with resistances varying from 5 pounds to 100 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.