Xliders (a. K. A. Sliders) are the world's first independent foot stance skateboard. You wiggle your body like a snake to propel yourself. Every time you hop on the Xliders you will improve your balance and give your legs a workout with smooth, even resistance. Since you never have to push, you get a perfect no impact workout. When you ride the Xlider, you will notice a terrific workout of the muscles in the core area of your body. Great for proprioception, it's like rolling on independent balance boards for each foot. Xlider is great for working out your adductor muscles, abs, hips, legs, buns and thighs. It is an easy and fun aerobic exercise for anyone. It is CE approved. It is made of materials of high rigidity and high friction endurance. It is designed with 4wheels and flexible connector. Weigh Capacity t: 85 kgs 1pcs in a cloth pocket Package: 6 pcs/carton Weight: N. W.: 18 kgs G. W: 20 kgs Meas: 79*25.5*51.5cm