Your little engineer will love this do-it-yourself metal bike kit. The easy-to-assemble pieces allow your child to build a bike or use their imagination to create something new! Great for hands-on learning and expanding motor skills. Includes 202 pieces, wrench, screwdriver and instructions. Metal and plastic. The approx. assembled size is 7"L x 4 1/2"W x 4 1/2"H. Ages 5+.