Features 1、10Pcs in 1 Set: The kit contains 10pcs 4 blade propellers, with sufficient in quantity, easy to use and replace. 2、4 Blades Design: These propellers have 4 blades and are small and compact in sizes, easy to install and do not take up space. 3、With 2mm Hole: The outer diameter of the propeller is 60mm with a 2mm inner hole, which can be installed on a 2mm motor shaft. 4、Made of ABS Plastic: Made of excellent ABS plastic, with high hardness and impact resistance, not easy to deform. 5、For DIY Toys: The propeller is used as a DIY toy accessory, and can be used to make boats or remote control car models, etc. Specification Item Type: 4 Blades Propeller Model: XR-147 Material: ABS Purpose: Suitable for DIY toy accessories remote control car model Outer Diameter: Approx. 60mm / 2.4in Inner Hole: Approx. 2mm / 0.08in Blade Quantity: 4 blades Package List 10 x Propeller