Gemfan 5030 5" x 3" Propellers - Black - 4x Clockwise + 4x Counter-Clockwise - Perfect For 250mm Quadcopter! Gemfan 5030 props are the most popular & economical propeller for 250 quads Total of 8 propellers (4 CW + 4 CCW) included + shaft reducers per prop. Buy 2 or more Gemfan 5030 or 5040 prop sets from ZwissTech and save 15% - mix and match colors, prop pitch and blades Diameter: 5" - Pitch: 3" - Blades: 2 - Shaft Size: 5mm Color: Black (the coolest to look at but the hardest to see)