Features Simple Structure: These accessories board assembly and circuit connections are very simple, no soldering required, suitable for children to complete independently. Easy to Assemble: Tried and tested high accuracy wooden parts and detailed instructions, which make fan model assembly easier and more convenient. Composite Wood: These board accessories are made of excellent composite wood, non toxic and odorless, with rounded edges, safe and reliable in operation. Complete Parts: The DIY electric fan assembly kit includes 3D wooden puzzles, battery box, switch, shaft and motor, and comes with screw package for kids to assemble models in different styles. Wide Application: Electric fan assembly model kit, which can be used for children educational teaching, manual ability training and scientific experiments, etc. Specification: Item Type: Wooden Fan Model Material: Composite Wood Uses: Crafting, Puzzle Teaching Paint Material: Unpainted Wood Battery: 1.5V AAA Battery x 2 (included battery) Package List: 1 x Paddle 1 x Battery Box 1 x Motor 1 x White Glue 1 x Switch 1 x Accessory Package (4 x Bushings, 38 x Screws) 1 x Red Wire 1 x Black Wire 1 x Grinding Stick 3 x Building Blocks 1 x Screwdriver Package List 1 x Paddle 1 x Battery Box 1 x Motor 1 x White Glue 1 x Switch 1 x Accessory Package (4 x Bushings, 38 x Screws) 1 x Red Wire 1 x Black Wire 1 x Grinding Stick 3 x Building Blocks 1 x Screwdriver