8 Sets DAL 6045 (6 x 4.5) Bull Nose Propeller Made From Special Poly Carbonate Glass Injection Material. Colors Orange, Black, Green and Red. 16 PCS (8 CW and 8 CCW) Virtually Unbreakable 6045 Bull Nose Propellers: Special Glass + PC Injection Holds up to most impacts. Won't snap or crack like other props. 6045 Props with 5mm shaft diameter works with most 250mm to 310mm mini quadcopters and hexacopters Hubs: 5mm, Shape: Bull Nose 8x CW Black,Orange, Green, Red and 8x CCW Black,Orange, Green. 16 Props Total