Description It is a great DIY toy kit for kid to understand the basic mechanical structures, and power transmission. Made of wooden and metal, eco-friendly, smooth without any burrs, and durable for long lasting use. Great for school project, parent-child communication or intellectual development, stimulate children's learning fun. Features - Color: Wood color. - Material: Wood. - Size: 22 x 12 x 9 cm/8.7 x 4.7 x 3.5 inch. - A great DIY toy kit for kid to understand the basic mechanical structures, and power transmission. - Made of wooden and metal, eco-friendly, smooth without any burrs, and durable for long lasting use. - Direct assembly, no need for other accessories, simple assembly, exercise the child's hands-on ability. - By operating this product, you can help deepen your understanding of physics and increase your interest in science. - Great for school project, parent-child communication or intellectual development, stimulate children's learning fun.Package list: 1 x DIY Electric Plotter