[Match your roller skates]Package includes 8 LED glow-in-the-dark roller skates that flash at night; each wheel comes with 2 608 bearings and 1 roller skate core, and comes with an installation wrench [Reliable Material]This glow-in-the-dark double row pulley is made of durable and durable PU with 82A hardness for good sliding performance; the pulley performs well on wood, concrete and sports tile interior surfaces, providing you with long-lasting grip [Sturdy and durable bearings]Adopt 613RS high-speed bearings, sliding without noise, and fast speed, more durable. [Designed for acceleration] Designed with an exclusive anti-stick compound that reduces friction for fast/consistent, sliding. [ your skates] Colorful and dazzling. When the wheels spin, the lights will automatically . So the faster you skate, the brighter they get Color: As Shown Material: PU Package Contents: 8 x roller skate wheels 1 x Wrench Only the above package content, other products are not included. Note: Light reflection 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.