Features: 1.A small model that stimulates a child's interest in learning and curiosity. 2.Improve children's hands-on ability through dismantling and assembling 3.The use of ecological, non-toxic, pollution-free wood materials, safe to use. 4.Small toys can arouse children's curiosity and scientific and reasonable set-up and other characteristics received 5.More and more parents' favor, becomes the parent educates the child's helper. 6.Such as developing children's cognitive ability, observation ability, memory ability, comprehension ability, coordination ability of various parts of the body, etc. specification:Item Type:Wind Generator Toy Voltage:1.5V Battery:2 x AA Battery(Not Included) PackageList:1 x White Emulsion5 x Batten1 x Wooden Board2 x Motor1 x Battery Case2 x Triple Fan Blades1 x Wire4 x Zip Ties2 x Diode1 x Users Manual NotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.