This wooden insect is beneficial to cultivate children39s curiosity about science improve their creativity and exercise their handson ability Besides while playing kids can better understand how electrical energy changes into kinetic energy Its working principle is electrical energy is converted into mechanical energy to generate power driving mechanical insect to crawl FeaturesFine quality wood material and exquisite workmanship provide smooth surface and unique appearance Selected highquality metal components ensure the best and stable performance 14*8*7cm mini size convenient to store and carry Wooden insect assembly process bring DIY fun make kids fulfilled and train their handon skills Educational toy promote kids39 intellectual development and abilities like creativity and imagination concentration handeye coordination and pattern recognition etc enable them to learn energy transformation knowledge at the same time Recommend age 714 years old Power supply powered by 2pcs AA batterynot included Best gift perfect gift for children on their birthday children39s day etc a great choice for decorations in living room study room etc SpecificationsName DIY Building Insect KitMaterial WoodAge Range 714 years oldBattery Not includedItem Size 14*8*7cm5 5*3 1*2 8inPackage Size 15*15*5cm5 9*5 9*2inItem Weight 155g5 5ozPackage Weight 160g5 6ozNoteDIY building insect kit only other accessories are not included Due to manual measurement there may be deviation Due to photograph light or other reasons the item in picture and material object may have slight difference please in kind prevail Packing List1 * DIY Building Insect Kit