Scientific Small Production DIY Electric Plotter Primary School Students Hand-made Creative Invention of Children Technology Materials(As Show)

1. Weight: 200 g
2. Material: Wooden + electronic components
3. Dimensions: 16.7 x 9.6 x 6.2 cm
4. Note: Three colored pencils are provided, provided on a white paper
5. Description: This experiment includes the knowledge of gear transmission, reduction of gear sets, crankshaft structure, center of gravity, power transmission of pulleys and belts through friction to do power transmission, baby is the material package, and it will distribute beautiful graphic printed instructions
6. Applicable age: Juvenile
7. Power supply: 2 x AA batteries (not included)
8. Ability development: Manual brain, grasping, vision, interest development, intellectual development, sense, emotion, hearing, other ability development, hand-eye coordination, parent-child communication, interactive toys