Tri-Blades 5050 Bullnose Propeller (6 Sets, 12CW, 12CCW) for Quadcopter 5050x3 Props for Drone Helicopter FPV RC Racing XSOUL LATEST DESIGN ITEM: Tri-blades 4045 bullnose propeller, 4 inch 3 blades 4045x3 props. ADVANCED DESIGN: Optimize appearance design, powerful, balanced and light. QUALITY MATERIALS: PC+ fiber glass injection, indestructible and durable. MOST OF DRONES CAN USE: With 5mm shaft diameter, works with most 250mm to 310mm mini quadcopters and helicopters. EXCELLENT VALUE: Pack of 4 sets propeller (8CW, 8CCW, 4 sets, each color per set) and 4 pcs XSOUL logo sticker.