Rocking skateboard, drifting skateboard, drift board drift board 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 board you will improve your balance and give our legs a workout with smooth, even resistance. Since you never have to push, you get a perfect no impact workout. When you ride the drifting board, you will notice a terrific workout of the muscles in the core area of your body. Great for proprioception, it is like rolling on independent balance boards for each foot. It's an easy and fun aerobic exercise for any one. Body Size 28X20X12cm Max Loadability 85kgs Deck Material ABS Wheel 80mm High-Elastic PU wheel Caster Truck Alumnium and 360 degree turning Bearing ABEC-5 Color As picture Packing 1Pair/color box, 10Pairs/Carton Carton Size 70cmX39cmX29cm 21.0kgs/23.0kgs Container Load 2520pcs/20’ft; 5040pcs/40FCL;6048pcs/40HQ