Propellers 128mm as a set of CW (clockwise) and CCW (counterclockwise), so 2 propellers in total. These propellers are recommended for the quadcopter frame offered here.Characteristics: * Color: red * Length: 128mm * Material: plastic * Diameter connection: 3mm, 3.2mm, 4mm, 5mm, 6mm, 6.35mm, 7.95mm