Features: 1.A small model that stimulates children's interest in learning and curiosity. 2.Improve the child's ability through disassembly and assembly. 3.Ecological, non-toxic, non-polluting wood materials are used safely. 4.We provided two kinds of race car for you to choose favorite one. 5.The characteristics of small production toys that can cause children's curiosity and scientific and reasonable settings are favored by more and more parents, and become the helper for parents to educate their children. Such as cultivating children's cognitive ability, observation ability, memory ability, understanding ability, coordination ability of various parts of the body, etc. specification:Item Type:Race Car Model Battery:2 x AA Battery(Not Included) Voltage:1.5V Model:WF Race Car A/WF Race Car B(Optional) PackageList:WF Race Car A(Wide Car Head): 1 x Assembled Board1 x Battery Case4 x Wheel1 x Motor1 x Yellow Gear 1 x White Gear2 x Iron Rod3 x Mini Yellow Ring1 x Users Manual1 x White Glue1 x Double Faces Adhesive Tape WF Race Car B(Small Car Head):1 x Assembled Board1 x Battery Case4 x Wheel1 x Motor1 x Yellow Gear1 x White Gear2 x Iron Rod1 x User Manual1 x Double Faces Adhesive Tape NoteThe wheels will be shipped randomly.