Crazy Skates illumin8 Light Up Roller Skate Wheels (2-pack)

illumin8 wheels use super bright and efficient LED technology that converts energy from the spinning wheel to generate the power to Light Up your wheels - batteries are never required. The faster you go, the brighter your wheels become. Available in 7 awesome semi-transparent colors (including some with Glitter), there will be a color to suit everyone. 90A hardness. Comes in a set of two wheels and fitted with chrome steel ABEC-7 bearings! Note: each set comes in a pack of two wheels; you will need four sets for a complete pair of roller skates!