Specifications:A great DIY toy kit for kid to understand the basic mechanical structures, and power transmission.Made of natural wooden, eco-friendly, non-toxic, smooth without any burrs, and durable for long lasting use.Direct assembly, no need for other accessories, simple assembly, exercise the child& 39;s hands-on ability.Great for school project, parent-child communication or intellectual development, stimulate children& 39;s learning fun.Type: DIY Plotter ModelMaterial: Wooden + MetalPower Supply: 2 x AA Batteries (Not Included)Features: Scientific Experiment, Auto Drawing Robot, Educational ToySize: 22cm x 12.5cm x 12cm/8.66" x 4.92" x 4.72" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Set of DIY Plotter Model