[Match Your Roller Skate]This pack contains 4 glowing roller skates wheels that shine at night;Each wheel is equipped with 2 bearings, 1 magnetic core. [Size]: 32mm x 58mm Suitable for a of places to play park roller skating asphalt, suitable for roller skates and skateboards.Women and girls can also use it and outdoors. [82A Hardness Wheels &Rugged Bearings]Accessories using polyurethane polymer material, non-, wear-resistant, good pressure resistance, four-wheel PU shock absorption, longboard skating more comfortable& Using 608RS high-speed rotating bearing, indoor inline sliding without noise, smooth and fast rotating speed,more durable glow quad. [Luminescence Principle]This product does not contain battery, by the magnetic core through high-speed rotation to achieve the luminous effect. [Upgrade Six Light]The combination of three blue lights and three white lights adds fashionable color to your outdoor LED double row roller skate Six Light Material:PU colour:Blue Package Contents: 4 x Wheel 8 x bearing 4 x magnetic core 1 x wrench Only the above package content, other products are not included. Note: Light 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.