Features: 1170-3 11inch traversing machine flight photography Propellers, suitable for FPVs drones motor. Provide stable flight performances and stable flight shooting effects. Design unique rotating leaf to provide efficient pull force and flight stability. The 11inch traversing aircraft flight Propellers features lightweight design and quality manufacturing. The leaf designing is scientific and reasonable, reducing noise and improving aerodynamic performances. Specifications: Component: Glass Fiber Nylon Color: black Diameter: about 280mm/11inch Suggested Motor: 3220 Hole Diameter: 5mm Quantity: 1 Pair(1xccw+1xcw) Package Includes: 1 Pair Propellers note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.