Gonex Resistance Bands Set For Legs, Weight Loss Or Body Building - Perfect for Home & Travel Gym 5 Pro Exercise Bands:Yellow(6 LBS - 8 LBS)Green(9 LBS - 11 LBS)Red(12 LBS - 14 LBS)Blue(15 LBS - 18 LBS)Black(22 LBS) Premium Natural Latex Material - The resistance bands are made from natural latex which is non-irritant and odor free. Just as importantly they offer excellent performance and can handle even the most vigorous of workouts. Metal Clipping System - Each band comes with two durable metal clip to make sure the safety for users. This also makes combining any band with others possible Any Fitness Level - Based on your fitness level and the intensity of your desired workout, you can combine different resistance bands to achieve your goals of building muscle or losing weight. Warranty:Our Promise-Lifetime Warranty-Exchange, return.