The Gold's Gym 3-Level Resistance Tube Kit is an excellent choice if you are looking for a way to fit in some exercise and maintain or regain your physique. It comes with three different level of resistance. The stretch tubes set offers a red tube for low resistance, a blue one for medium resistance and a black tube to provide heavy resistance. You can use them together or separately depending on how you choose to personalize your workouts. The Gold's Gym 3-Level resistance tube kit has a fitness stretch band with two detachable easy-grip fabric-covered rubber handles that help prevent wear and tear during heavy exercise. The set also includes a removable and adjustable nylon strap for your convenience. This Gold's Gym 3-Level Resistance Tube Kit also includes an exercise guide. You can carry the entire kit in the included nylon mesh bag so you can take it anywhere you want to exercise.