Remember the feeling of danger you felt stretching out rubber bands as a kid? That thrill of knowing that the more you pulled, the more power you were putting behind that rubber band to fly across the room? Now, we aren?t allowed to tell you to shoot our resistance bands across rooms to hit your classroom rivals. However, we can promise that feeling of thrill and satisfaction, in the form of burning soreness in your muscle fibers from the intensity of a resistance band workout. Studies have show that elastic resistance training increases muscle strength and decreases body fat, often more so than free weight and machine training. In one study, testers found that resistance band training strengthened rotator-cuff muscles of the school's baseball pitchers better than a training program utilizing dumbbells. And unlike heavy and expensive workout machines, resistance bands grant you a full range of motion, allowing you to train your whole body instead of just one muscle group. With our resistance bands, you won't lose 10 pounds in 10 days or build 6-pack abs in a week. But you will challenge your body, increase your fitness level, and build strength- all with just one portable, lightweight, IRIS Fitness Band Set. Set of five 48-inch long coloured bands includes: yellow, blue, green, black and red. Include 5 Exercise Bands, Door Anchor, Foam Handles, Ankle Straps.