Material: High quality ABS environmentally friendly materialsFeatures: Two-way simulation electric drill (powered by 2*1.5V AA battery, excluding battery), slow speed, various shapes of building blocks, bright color, smooth surface without burrs, can be flat puzzle and 3D puzzle, provide more for children Creative space.Function: Improve children's cognitive ability, thinking ability and creativity, exercise children's hands-on ability and hand-eye coordination ability. Tips:1. Since the size is measured by hand, there may be an error of 1~3cm.2. Due to different production batches of products, the color of some product accessories may be different from the color of the picture, but we guarantee that the specifications and functions are the same.3. Since some products use common instruction manual or puzzle manuals, please do not compare the actual goods received with the model parts in the manual. We provide the manual, just to facilitate your child's use of the product. I hope you understand.