AvatarRC Geniune Gemfan 5030 (5x3) Yellow Propellers for 250 Size Quadcopters and Multirotors - Perfect for 210mm to 300mm frames 100% Real and Genuine High Quality Gemfan 5030 (5x3) Propellers Most Popular size Propellers for FPV 250 class Racers like ZMR250, Blackout 250, Blackout Mini, and other quad kits The bright yellow color of the propellers makes your aircraft easy to see, and helps you safely fly line-of-sight (LOS) 8 total propellers, 4 clockwise (CW) and 4 counterclockwise (CCW). Can properly fly two quad drones or use as spare propellers Get longer flight time than comparable 5" propellers