powerday4pairs 4050 Propeller Balanced Props CW CCW for Mini Drone QAV180 QAV210 QAV250 Black&Red High quality, balanced, characterized by ruggedness and light weight. Use for QAV180 QAV210 QAV250 Mini quadcopter drone. Suitable for 1804 / 1806 / 2204 /2206 / 2205 / 2207 size motor. - Size: 4 inch, - Hole Diameter: 5mm - Color: black / Red, - Material: ABS, - Weight: 3g/pcs - Includes 2-pair Black propeller, 2-pair red propeller