This authentic U.K.-made product is a 2-wheeled light-up skate that straps onto the back of shoes and sneakers with an adjustable strap. To go, kids or adults lift the balls of the feet and balance on the wheels. To stop, the wearer puts down the balls of his or her feet. They’re lightweight and much easier to carry around than in-line skates. The motion of the wheels makes the skates light up. Protective gear is recommended.