Sold in a 4 pack.
These l.e.d. 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 l.e.d.'s in the wheel.
They work out of the box with skates that use 8mm axles.
If your skates have 6mm axles then you will need to purchase a for each wheel.