Science & Exploration Sets features: This building learning kit is the fun educational gift for kids and teenage who like STEM and science projects, can well develop kids learning skills and hand-on ability. The crane assemble kit can kids curiosity and creativity, well learn simple principles. Features Color:As Shown Material:Plastic. Size:12.70X7.70X12.00 cm/4.99X3.03X4.72 inch This product is aimed at training children with hand-eye coordination and hands-on ability at the same time to improve intellectual development Bring much more joy to your kids. Your kids will learn so much in the process of having fun Through the interesting process of crane assembly learning, you can really feel the joy of continuous conquest Exercise children's ability to use their hands and brains, learn science and technology knowledge Suitable for children over 5 years old, perfect for Children's school physics science STEM engineering projects.