Resistance tubes are one of the most effective forms of exercise for performing lower body, upper body and core conditioning. Whether your goal is building lean muscle mass or shedding excess body fat, ZoN Bright Pink Resistance Tubes will help you reach your goals. Use the tubes to burn fat through high-rep, low-resistance exercises, or to gain lean muscle mass through low-rep, high-resistance exercises. Isolate individual muscles or use as a full range of motion exerciser. Resistance tubes provide a safe, proven, do-anywhere routine to build strength and improve tone; no bulky metal weights needed. Choose from 2 resistance levels to suit your fitness capabilities.