Material of car body: Iron + PP plastic Material of tires: Rubber( outside) + plastic (inner) Overall size: 41.5" x 23.2" x 24.4" (L x W x H) Weight capacity: 66 lbs Suitable age: 3+ -Automatic balancing system with four wheels for better balance and stability - A low gravity center will prevent the kart from flipping over - Wear-resistance rubber wheels with anti-sliding textures - Easy operation of the pedals to ride forward or in reverse - Ergonomic adjustable seat (2 positions) with a high backrest for additional comfort - A fully enclosed chain protects your kids from falling out of the kart - The steel frame offers a big load-bearing capacity - The 3-point steering wheel for the authentic driving experience