RAYCorp&reg; 4045 4x4.5 Propellers. 16 Pieces(8 CW, 8 CCW) 4-inch Quadcopter and Multirotor Props + 1 battery strap Pack of 16 Propellers, 8 Clockwise (CW) & 8 Counter-Clockwise (CCW) - Color : Red (8 props) & Black (8 props) The #1 Best Selling and Most Used Propeller for sub 250-sized quadocopters, hexacopters and FPV racers 100% Genuine & Brand New. Made with High Quality ABS Plastic for Maximum Performance, Durability and Balance. Perfect for 210 and 180 sized FPV racers like : QAV210, QAV180, ZMR210, ZMR 180, SRD180, SRD 210 or Walkera F210 & other multirotors, quadcopters and hexacopter. Works well with the following motors : all 1806, 13xx & 2206 motors