Feature: 1. Fully injection ing processing compound, it has high rigidity and toughness, greatly reducing the damage rate. 2. Aims to Achieve Perfect Blade Dynamic Balance and Good Coordination Between the Air Ducts. 3. It has passed good aerodynamic tests, is more stable, and has excellent power. 4. The motor provides powerful power and high efficiency for RC airplane, thereby providing high?speed operation. 5. Using High Quality Material with Long Service Life and Better Work Efficiency, It is Suitable for Rc Airplane. Specification: Item Type: Ducted Fan with Motor Motor Model: QF1611（1311）30mm Material: Aluminum Alloy + Plastic + Copper Product Color: As Pictures Shown Stator Diameter: 13mm / 0.5in Stator Length: 11mm / 0.4in Motor Size: 16x25mm / 0.6x1.0in Product Weight: Approx. 34g / 1.2oz KV: 7000KV Number of Blades: 6pcs Architecture: 9N6P No-Load Current: 0.5A Lithium Battery Index: 2-4S Lipo Maximum Continuous Power: 120W Maximum Continuous Current: 12A Package List: 1 x Ducted Fan with Motor Note: 1. Please allow 1?3mm 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.