The Roller Derby Light Up Quad skate is sure to be seen anywhere. These roller skates for kids feature Led lighted, illuminating wheels, and a sporty design. Each skate features two wheels that light up when the wheel rolls, using the power generated by movement - no batteries are required! These urethane wheels are not only eye-catching but they have the right grip and bounce for rink or sidewalk. Your child is sure to have fun! These skates fit true to U.s. children's shoe sizes. Roller Derby is America's Skate Company since 1936.