DescriptionThrough the DIY way, can trigger the child's imagination and curiosity, can exercise the child's finger flexibility, let the child's fine movements get better development. Discrete and fun, also effective for focus and deep thought.Features- Color: As shown. - Material: Wood. - Size: 20 x 10 x 15 cm. - Through the DIY way, can trigger the child's imagination and curiosity, can exercise the child's finger flexibility, let the child's fine movements get better development. - Made of natural wood, no-toxic and durable. - Children's interest in scientific physics experiments. - Discrete and fun, also effective for focus and deep thought. - The product has very smooth edges in result in No scratch injure for kids hand