[Reproduce gym training at home 5 training tubes set] Reinvent the way you train with the TRNR X31 Resistance System for efficient, varied and safe workouts anytime, anywhere. Despite the fact that it fits in a small bag, it provides a workout effect that rivals the equipment of an entire gym. It's easier than ever to make your arms, legs, pectorals, abs, glutes, and back muscles stronger and more toned. Progressive resistance throughout the entire range of motion is gentle on the joints and provides maximum results. The stacking clip system allows you to mix up your routine and stay motivated. Choose your favorite gym or exercise Pilates from the included poster and stack or remove resistance (from 3.4 kg to 68.6 kg) to suit your needs. Doors and outdoor anchors allow you to move in all directions, expanding your exercise possibilities. It's easy to set up, and all you need is a door or a fixed object like a bench, tree, or pole. By switching from the handles to the ankle straps, the workout change from upper body to lower body can also be completed in seconds.