1. Made Of Material, Wear- And Long Service Life. 2. Multi-Tool: This Kit Has A Total Of 78 Pieces, Including Axles, Tires, Gears, Bushings, Etc., Which Can Meet Your Different Needs. 3. Replacement: The Parts Are Small And Easy To Use. They Also Make A Great Replacement For Old Or Broken Parts. 4. Usage: Used For Diy Assembly Of Toy Cars, Robots, Toy Airplanes, Models, Etc. 5. Diy Ability: A Great Tool Kit To Promote Diy Ability And Improve Children'S And Teenagers' Hands-On Skills And Divergent Thinking. Quantity:78Pcs/set Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:As Shown Material:POM Package Contents: 78 * Gear Pack Motor Accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.