LEGO Technic Race Kart 42048 Building Kit Build a sleek and sporty Race Kart with real working steering and moving pistons! Includes slick racing tiers, racing stickers and gearbox LEGO Technic building toys are compatible with all LEGO construction sets for creative building Race Kart is 10 inches long, 7 inches wide, and 2 inches high 345 pieces  For boys and girls between the ages of 9 and 16 years old