Gemfan 5040 5" x 4" Propellers - Black - 4x Clockwise + 4x Counter-Clockwise - Perfect For 250mm Quadcopter! Gemfan 5040 props are a more powerful version of the popular Gemfan 5030 prop Total of 8 propellers (4 CW + 4 CCW) included Also includes 3 sizes of shaft reducer adapters Blades per propeller: 2 Color: Black