Cifaisi roller skates can be easily adjusted to 4 different sizes with its size-adjustment button. The Adjustable design means you won t have to buy new skates every few months. It is an excellent choice for a growing child! All the illuminated wheels will light up and provide a colorful rainbow display when your kid start to skate. These self-generating power wheels are no battery needed. With wider wheelbase, the durable 82A wheels also give exceptional stability alongside a smooth and easy ride, give kids more confidence and learn faster. The safety ratchet buckle, power strap and laces up closure system help fasten the feet properly into the skate and create an additional wrapping effect when using our roller skates. The upgrade brakes equipped on the skates help your child to brake when they need to stop and also helps to prevent collisions with other skaters. These are wonderful kids skates that will sure brighten up the rink with their amazing lightup wheels!