Description The Resistance Band Exercise Loops are made for rehab & training exercises. When to use them With these high quality elastic loops, muscle groups & tendons can be stretched & strengthened as part of rehabilitation training or sports training. Common Conditions For treatment & prevention of Hamstring & Thigh muscle injuries. Resistance Heavy (green) Please note: Product for sale is the green loop shown in the image. How they work The Resistance Band Exercise Loops can be used to add variety to standard workouts. It's an excellent method of resistance training for the development of specific muscles & tendons. This heavy resistance aids to build muscle strength. Lightweight & portable, Resistance Band Exercise Loops can be taken anywhere & offer an alternative to heavy & large weights.