No batteries required, this product is powered by solar energy. With 3 assembly models including the dinosaur, the insect and the drilling machine, this toy kit allows children use their infinite imagination and to create, which can greatly improve their practical ability, critical thinking ability and confidence. Features: - STEM Education Method: Science & Technology & Engineering & Math. Learning through games is a very efficient teaching method. This building block toy kit, a wonderful educational toy, is full of fun and can effectively improve children's practical ability and creativity. - Quality Material: Made of non-toxic ABS material, it can be used for a long time, the parts of whom are smooth, ensuring the safety of children. - Complete Set: Complete parts, can be more diversified. - Solar Powered: No batteries required, more friendly to the environment and stimulates children's desires for knowledge and exploration. - Reassembled Enjoyment: These parts can be disassembled and reassembled in a circular way to stimulate children's thinking ability and creativity. - Scientific Toy Kit: Suitable for children over 8 years old. Children will learn how each component works with other components to build a finished moveable robot. - 3 Types of Assembling Robots: Dinosaur, Insect and Drilling Machine. - Equipped with Assembly Manual: It can easily cope with different levels of assembly difficulties, suitable for parent-child cooperation or sharing and cooperating between children. Specifications: Material: ABS Color: Green Suitable Age: Above 8 years old Size after Assembly: Approx. Dinosaurs: 13.5*5.4*8cm / 5.31*2.13*3.15in Insect: 13.7*8*7.4cm / 5.39*3.15*2.91in Drilling Machine: 11*5*5.5 cm / 4.33*1.97*2.17in Item Weight: Approx. 225g / 7.94oz Package Size: Approx. 24*6.7*18.2cm / 9.45*2.64*7.17in Package Weight: Approx. 300g / 10.58oz Note: Please read the Users Manual before use. Packing List: 2 * DIY Assembly Toy Set 1 * Accessory Kit 1 * Users Manual(English)