Description The Resistance Band Exercise Loop is made for rehab & training exercises. When to use it With this high quality elastic loop, muscle groups & tendons can be stretched & strengthened as part of rehabilitation training or sports training. A choice of four different levels of resistance means you can gradually ease back into exercise or take on progressive training. Common Conditions For treatment & prevention of Hamstring & Thigh muscle injuries. Resistance Easiest Light (yellow) Medium (Red) Heavy (Green) Extra Strong (Blue) Strongest This item is: Medium (Red) How it Works The Resistance Band Exercise Loop can be used to add variety to standard workouts. It's an excellent method of resistance training for the development of specific muscles & tendons. Four different levels of resistance offer a gradual challenge & aid to build muscle strength. Start with the lowest level of resistance & build sets & repetitions gradually. Then once the exercises become too easy, move on to the next level of resistance provided by the next exercise loop. Lightweight & portable, Resistance Band Exercise Loops can be taken anywhere & offer an alternative to heavy & large weights.