Yoga string for an easy way for a quick workout, this resistance band workout Set is perfect for you. With the different color bands, you can adjust the intensity of your workout. The foam handles provide sturdy and comfort, while the two different anchors allow you to strap the bands to your ankles or door. Resistance bands, also known as exercise bands, fitness tubes, and resistance cords. It is made of latex used for strength training. By constantly breaking down muscle issue, then allowing it to regenerate, it will begin to grow in size and definition.