RC propellers are widely used in RC airplanes and can be used for excellent prop replacement. Note: Accessory only, package does not include aircraft model. Please check the rotational diameter and pitch of the product carefully to ensure it is fully compatible with RC plane motor. Specifications: Color: Orange Material: Nylon Blade Quantity: 2 Diameter: 6 inch Pitch: 3.5 inch Hole Diameter: 6 mm (Small) / 9 mm (Large) Package Includes: 4 x RC Propellers x 4 x Hole Adapters