Pack of 20 white plastic gears, 25 mm outer diameter, designed for mechanical and electric model applications. Each gear provides a consistent, easy to install component for hobby, prototyping, and projects. Key benefits Ready supply of parts: 20 identical gears in one pack reduce downtime when replacing worn components or assembling multiple models. Simple integration: standard shape and size make these gears easy to mount, modify, or pair with common hobby motor shafts and adapters. Lightweight and durable: plastic construction keeps moving mass low while offering dimensional stability for smallscale mechanisms. Cost effective for prototypes: ideal for testing gear ratios and layouts before committing to custom parts. Important attributes Quantity: 20 pieces Color: white Material: plastic Diameter: 25 mm outer diameter Function: transmits rotational motion in small mechanical and electric model systems Practical applications Model and replacement: swap out damaged gears in remote control cars, model trains, and electric kits to restore motion quickly. Robotics and STEM projects: build simple gear trains, change gear ratios for small motors, or use as teaching components in classroom experiments. DIY prototyping: test gear spacing and meshing on mechanical mockups, custom enclosures, and hobby engineering projects. Notes on compatibility and installation Suitable for a wide range of small electric model uses when shaft and bore dimensions are matched or adapted. Gears can be trimmed or modified with common hobby tools for custom fitment. Who will find this useful Hobbyists, model makers, educators, makers, and smallscale equipment repairers looking for a straightforward supply of identical 25 mm plastic gears for mechanical and electric model projects.