Strengthen Your Muscles Without Straining Your Joints: These workout bands put far less pressure on your joints when compared to other exercises. This makes them ideal for injury or surgery rehabilitation. They increase the strength of your muscles without straining your body. With Five Different Resistance Levels: You'll get five different bands, ranging from X-Light to X-Heavy. If you're completely new to exercising or you're recovering from injury, you can slowly work up to find the right level for you. If you're an accomplished athlete, you also won't be disappointed. Lightweight And Portable: With these resistance bands, you can strengthen your muscles or have a physical therapy session without the hassle and expense of finding a gym or therapist. They are incredibly light, and come neatly packed in a handy travel bag. Includes Both Fitness Training And Physical Therapy Workouts: If you've never used resistance bands before, we're there to guide you all the way. Whether you're trying to increase your fitness or recover from injury, you'll find clear, simple instructions for effective workouts inside.