12 Pcs DAL 6045 Tri-Blades. Red, Black and Yellow. Made From Special Poly Carbonate Glass Injection Material. 6045 (6 x 4.5) DAL 6045 Tri-Blade. Made from special glass + pc injection material. Works with most 250mm to 310mm mini quadcopters and hexacopters Hubs: 5mm Shape: Normal 2x CW Black, Red and Yellow. 2x CCW Black, Red and Yellow.