Estimated Delivery : 8 ~ 10 business days, Free shipping Features: - 3 IN 1 SOLAR ROBOT KITS: Solar Robot Science Kit comes with 68pcs parts to create 3 different types of building robots (Dinosaur, Insect, Drilling Machine). Science kit for kids is helpful to develop the brain's potential, promote creativity and logical thinking skills. Stem toys for 10-12 year old boys - STEM TOYS FOR BOYS WITH NO BATTERIES NEEDED: Robot kits adopted the latest solar power technology that collects solar heat energy into an electric energy drive motor, which drives the gears to make the robot walk smoothly. Even a 50-watt lamp can make it walk. Let them learn about renewable energy sources and have fun from assembling it - 100% SAFE PREMIUM MATERIAL: This solar robot kit toy is made of the premium BPA-free and non-toxic ABS plastic material, which makes children play safer and help children develop an interest in the science, technology, engineering, handcraft and robot knowledge - DIY EDUCATIONAL TOYS FOR KIDS: Science Kits for Kids 8-12 comes with a detailed user manual, stickers and all the pieces that make the robot, which can help them provide hands-on learning knowledge and enhance their confidence and enrich their cognitive ability - BEST CHOICE FOR KIDS GIFTS: science kits are specially designed for age 6, 7, 8, 9, 10, 11, 12, 13 boys and girls! Ideal gifts for 8-12+ years old boys / girls as birthday/ Children's Day/ Christmas / school activity gifts or prizes. It's also one of the most popular toys in 2020 Specifications: Warning - Choking Hazard: This toy is not suitable for ages under 3 years. It contains one or more of the following items marbles; small ball; or small parts Material: BPA-free, non-toxic and skin-safe ABS plastic Color: Green Power Supply: Solar Suitable Age: Above 8 years old Size of Dinosaur: 13.5 x 5.4 x 8 cm Size of Insect: 13.7 x 8 x 7 cm Size of Drilling Machine: 11 x 5 x 5.5 cm Box Size: 24 x 6.7 x 18.2 cm Package Included: 1 x 3-in-1 Solar DIY Dinosaurs Toys