3 years & up. These wheels supports a one-of-a-kind scooter, allowing users to swivel around by using their feet against the foot zone. These wheels fit perfectly on the EzyRoller Drifter, Classic, and the Drifter X. Wheels fit on the front or back of your EzyRoller scooter. Made of top grade polyurethane and the ball bearings are fast rubber sealed. Purchase 1 pack of 2 wheels or 2 packs of 2 wheels.