Specifications:Assembly your own sun earth moon orbital planetarium model with this creative kit.Can train and develop the children& 39;s different abilities in all aspects, such as intelligence development, hands-on brain training, interest cultivation and parent-child interaction.Has exquisite craftsmanship with gear drive, special.Type: DIY Planetarium ToyMaterial: Eco-friendly Wooden, Electronic ComponentsPower Supply: 2 x AA Batteries (Not Included)Features: Educational Toy, DIY Assembling, Gear DriveSize: 8cm x 12cm/3.15" x 4.72" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Set of DIY Planetarium Toy