This building block set features a -inspired supercar design with a pull-back motor, offering 464 pieces for kids aged 6 to 12 to construct and race. Each color box contains one complete set, and the set is sold wholesale by the box, with 18 pieces per carton. The blocks are made of durable plastic, and the finished model is designed for imaginative play and easy rolling action after assembly. It is a brick-compatible set that encourages creativity and fine motor skills through building and interactive play. This product is sold wholesale by the box.