It contains one or more of the following items marbles; small ball; or small parts. Recommended Age: Suitable for 3 years & Up. The 3-wheel scooter features Lean-to-Steer technology for smooth turning and stable balancing. As your child tilts his or her weight to the left or ride, the scooter glides into the turn. , , This advanced safety feature keeps kids from jerking on the handlebars, which can cause them to lose their balance and fall.