The longboard can be attached to a 50mm tube. The ball bearing, which has been fixed on both sides, gives you a clean rotation during use. The outer ring offers you a secure grip, it is rounded and sealed with a multi-layer coating process. The longboard is often used to jump on and off. This is where precision matters. So you can practice precision jumps and gain a lot of momentum to get to the next obstacle. The robust longboard offers you maximum stability thanks to the massive construction. The outer ring offers you optimal grip during training. This makes the Ninlab longboard the perfect companion for you during your workout.