Fielect 84 Type Plastic Gears Set Plastic Belt Pulley Gears Combination For Dc Motor Diy Model Toys84 Type Plastic Gears Kit Plastic Gear Features: 1. Multi Uses,Great For Diy Science And Small Production, Product Design And Mechanical Model. 2. The Products Are For Toys Spindle Gear Spare Parts, Suitable For Diy Model Technology Production. 3. It Includes Worm Gears,Crown Gears And A Couple Of Other Gears, Suitable For Diy Model Production Technology. 4. The Plastic Diy Gears Kits Are For Motor Gear Spare Parts Package, Many Uses, Fun To Use And