Hobbypower UGD 10" Propeller 1045 Prop Cw CCW for X525 F450 F550 Quadcopter 3d Fly Yellow 1 pair 1045 propeller. (yellow color). This is new 1045 plastic propeller, quality high upgraded, wind eddy fix, suit for 3d fly. After test, it is better than the carbon fiber propeller. Suit for all multi-rotor ( quadcopter / hexacopter / octacopter. . . Etc. ).