New Two Wheel Aluminium Alloy KingKong Wave Board Skateboard Caster Board Indestructible Lightweight Full Aluminium Alloy Design (Stronger & More Durable than ABS plastic material) 80mm polyurethane wheels provide a smooth ride on any type of pavement 360-degree caster trucks enable snowboard-like carving Automatic light-up wheels, great for night and day riding Rubber foot pads for better grip