Specification:Item Type: Electric DIY Space ModelMaterial: Composite woodBattery: 2 x AA Batteries (Not Included)How to Use:Fix the gear on the rotating plate with two short screws, fix the baffle with slot and the solar panel with screws, connect the battery box wire through the baffle at both ends of the motor interface, and install the short shaft on the motor drive hole.Package List:18 x Screws2 x Nut 2 x Long Screw1 x Iron Rod1 x Double Sided Tape1 x Screwdriver 1 x Battery Box1 x Motor2 x Board 1 x GearNote:This product contains small parts, kids should be used under the supervision of adults to avoid accidental ingestion by children.