These LED wheels light up when you roll on them!
They are super fun at night and provide the added safety of being seen while you're out skating in the dark.
Each wheel comes with a magnet which goes in-between the bearings. When the wheel spins, that magnet creates friction and that generates electricity to power the LEDs in the wheel.
They work out of the box with skates that use 8mm axles. Sold in a pack of 4 wheels.