1 Set Hot 85Pcs Plastic Gear Rack Pulley Belt Worm Gear Single Double Tooth Gear Material: Plastic Color: As the picture shown Product Description 85 Kinds of Plastic Gear Rack Pulley Belt Worm Gear Single Double Toothed Gear Common 85 Kinds of Travel Bags, Styles Plastic Gears Robot DIY Part for Cars, Aircraft Models Gadgets Both models, toys, cars, airplanes, remote control toys, all need to use equipment, so multiple models, it will always suit you! We promote DIY, initial ability, idea! If you are parents, children like toys, such as gadgets, equipment is essential, so many types, there must be one match! Let your child DIY. If you are a model enthusiast, equipment is essential, I believe you will know. Airplanes, cars, boats, small manufacturing, science and technology, all need equipment! The power of running is infinite, every mechanical equipment needed in its world. Let's make a design and an invention! Features Sector Gearbox 4pcs: 12T 15T 21T 28T Worm Gearbox 3pcs: 6-6 7-7 8-8 Blue Spindle Gearbox 4pcs: D-Shaft 3MM 4MM Round Shaft 2.3MM 3.17MM Gear Crown 14pcs Single Gear 15pcs Double Gear 19pcs Pulley 4pcs Axle Sleeve 3pcs Tee Flange 3pcs Gear-B 1PC Belt 3pcs So On (All Are In The Pictures) Quantity: 1 Set X 85pcs Tool Set Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1 Set X 85pcs Tool Set