Product Name: Plastic Gear Type: Single Gear Fit for: DIY Toys Motor Gearbox Shaft Teeth: 8 Modulus: 0.5 Total Diameter: 5mm / 0.22 inches Thickness: 5mm / 0.2 inches Shaft Diameter: 2mm / 0.08 inches Material: Plastic Color: White Weight: 3g This plastic gear is suitable for building custom gearboxes with customized gear ratios. The outer gear diameter is 5mm with 8 teeth. Designed to fit a motor shaft with a diameter of 2mm. Compatible with motor axles of 2.0mm diameter. Ideal for use in vehicles or remote control toys such as RC airplanes, RC helicopters, toy cars, and other similar applications. Package Contents: 30 x Plastic Gears Note: The package includes only the items listed above. Other products are not included. Due to lighting and display differences, the color of the item in the image may vary slightly from the actual product. Measurement error allowance is +/- 1-3cm.