Strengthen and increase flexibility with the Echelon Flat Band Kit. The three professional strength natural rubber latex circle bands come in different levels of resistance (light, medium and heavy) to customize the intensity of your workouts or add a gradual step-up. FEATURES: Improve your range of motion, increase flexibility and build total body strength. Become stronger and more flexible with the #1 recommended post-physical therapy tool: resistance bands Exercise guide included Clearly visualize common moves Increase flexibility, range of motion Build total-body strength Resistance bands in light, medium, heavy