16 Pcs DAL 4045 (4.0 x 4.5) Bull Nose.Purple. 8CW and 8CCW. Special Poly Carbon Glass Injection Material Nearly Unbreakable 4045 Bull Nose Propellers: Special Glass + PC Injection Holds up to most impacts. Will fit most 150mm to 300mm mini quadcopters. Hubs: 5mm, Shape: Bull Nose 8CW Purple and 8 CCW Purple Authorized DAL PROP Retailer