Clockwise and Anti clockwise Blade Propeller Suitable for 90mm-150mm DIY Micro Quadcopter Frame Kits For 1mm shaft diameter Carbon Brush motor N20, M20, N30 For 1mm shaft diameter Coreless motor 7*16mm, 7*20mm, 8.5*20mm also compatible with 6*15mm brushed motors. 2 PAIR RED And BLACK
