Feature 1Compatibility: Brushless motor is suitable for 2 to 4 Inch FPV Racing UAV and Quadrotor UAV, practical for use. 2High Rotational Speed: Precision balanced rotors with high smoothness provide optimum reliability and maximum speed. 3Precise Design: CNC machined aluminum front and rear cover, high purity high temperature resistant copper coil, effectively provide efficiency. 4Features: High toughness stainless steel output shaft and high precision premium bearings to create a durable motor. 5Performance: Stator windings are fixed with high temperature adhesive to prevent them from displacement, pinch off or short circuit.SpecificationItem Type:DroneQuadcopterBrushlessMotorMaterial: Aluminium alloyMotor Size: Approx: 19.3x14.8mm/0.75x0.58in (excluding cable)Configuration Ratio: 9N12PStator Diameter: Approx: 14mm/0.55inStator Length: Approx: 4mm/0.15inAxle Diameter: Approx: 1.5mm/0.05inSingle Motor Weight: Approx: 11g/0.02lbMaximum Continuous Power: 240W, 287.8WMaximum Current: 15A, 17.99ARecommended Battery Voltage: 2-4S, 3-4SApplication: Suitable for 2 to 4 inch FPV racing UAV, quadrotor UAV .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x BrushlessMotor4 x ScrewNote1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.