QWinOut 1pack of 4pairs 4730F Carbon Fiber Quick Release Foldable Propellers for DJI Spark Drone Accessory CW + CCW CF Props Brand_DarwinFPV M2*8 Bottom Plate Tapping Screws

M2*8 Bottom Plate Tapping Screws - 4

Mouting hole : 20x20/25

the USB port is very solid

Prop Disk Diameter: 76

constant speed adjustable sensitivity

QWinOut 1pack of 4pairs 4730F Carbon Fiber Quick Release Foldable Propellers for DJI Spark Drone Accessory CW + CCW CF Props Brand_DarwinFPV M2*8 Bottom Plate Tapping ScrewsRM1641845738545209 Package: sold by 4pairs (4pieces cw and 4peices ccw). Features: 1, This product can be directly into the original paddle seat; if the original paddle is damaged or need to spare, you can buy the props with a paddle seat set for replacement, the same as the original. 2, This product is lighter and stronger than the original blade, which can provide more lift and fly faster. 3. Just suit for DJI Spark Drone.