iFlight iPush 8 Pair PC+Glass Fiber 5045 Bullnose 3 Blade Tri blade Propeller Pass Dynamic Test Triblade and bullnose design, extreme violent and more efficient, equal 6 inch propeller Optimize propeller appearance design, high quality PC+10% glass fiber Pass dynamic Balance testing, large frontal area,first choice for FPV Racing 5mm shaft diameter works with most 250mm to 310mm mini quadcopters and hexacopters Package include 8 pair 5045 propeller, 2 pair Black, 2 pair Red, 2 pair Orange, 2 pair Green