50 mini UAV blades 6040 6x4 mini propeller suitable for 2450 motor. the high-strength propeller blades can generate more lift, which makes the UAV fly more efficiently, with less noise and stable and quiet flight. Let your equipment have the first-class speed. Mini propellers with good toughness, solid structure and high wear resistance provide good performance for your drone. The nylon propeller has a strong, fold-resistant and structure, which greatly reduces product loss, thereby achieving higher output and longer service life. With good balance, fine workmanship and excellent performance, it is the perfect accessory for RC aircraft. Colour:Black Material:Plastic Package Contents: 50 * RC propeller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.