Feature:1. [2mm Diameter] 40mm four blade propeller with aperture suitable for 2mm diameter motor shaft and straight shaft2. [Strong Wind] Large wind, large thrust, many colors, light weight, small volume and easy installation3. [Durable Materials] Made of high quality plastic material, durable and can be used for a long time4. [DIY Toy Car] Suitable for DIY toy accessories remote control car model, a variety of colors can be selected to decorate your car5. [4 Blades Design] The propellers have 4 blades and are small and compact in sizes, easy to install and do not take up spaceSpecification:Item Type: PropellerModel: XR-145Material: ABSPurpose: Suitable for DIY Toy Accessories Remote Control Car ModelOuter Diameter: Approx. 40mm / 1.6inInner Hole: Approx. 2mm / 0.08inBlade Quantity: 4 Blades.Package List:10 x Propeller