8Pcs Light Up Roller Skate Wheels 82A Luminous Skate Wheels With Bearings For Indoor Outdoor Double Row Skateboard                [Reliable material]This luminous double-row skate wheel is made of durable and long-lasting PU with 78A&82A hardness, which provides nice performance of sliding; The skate wheel performs well on interior surfaces of wood, concrete and sports tiles, giving you a lasting grip     [STURDY & DURABLE BEARING]Using 608RS high-speed rotating bearing, sliding without noise, smooth and fast rotating speed, and more durable.     [DESIGNED TO SPEED UP] Designed with an exclusive anti-stick compound reduce friction that gives a fast/consistent, smooth slide all the way through.     [LIGHT UP YOUR SKATE] colorful and dazzling. The lights come on automatically when the wheels are spinning. So the faster you skating the brighter they get           Colour:Blue light     Material:PU     Size:58 x 32mm          Package Contents:     8 * skateboard wheel     16 * bearing     8 * wheel core     1 * wrench          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.