Specification:Item Type: Turntable Experiment ToyMaterial: Composite WoodBattery: 2 x AA Battery (Not Included)How to Use:Match the motor clip to the front and back of the motor and install it on the motor, pass the 4CM iron shaft through the orange cylindrical gear, then through the large round gear, and pass the 8CM iron shaft through the orange gear.Package List:1 x Cylindrical Gear2 x Gear2 x Iron Shaft8 x Orange Accessories2 x Double Sided Tape1 x Black Soft Sheet1 x Motor1 x Battery Box2 x Assembly Board2 x Turntable