8 Sets Red DAL 5045 (5 x 4.5) Bull Nose Propeller. Made From Special Poly Carbonate Glass Injection Material. 16 PCS (8 CW and 8 CCW) Comprised of Special Glass + PC Injection that holds up to most impacts. Won't snap or crack as bad as other props. Works with most 180mm to 310mm mini quadcopters Hubs: 5mm Shape: Bull Nose Includes: 8 CW Red and 8 CCW Red Propellers Authorized DAL PROP Retailer