5 Pairs Racerstar 1535 38mm 1.5mm Mount Hole 4-Blade Propeller for Eachine Aurora 68 Racing Drone Specification: Brand Name: Racerstar Item Name: 1535 4-Blade Propeller Quantity: 5 CW5 CCW Prop Materail: ABSMounting Hole: 1.5mm Weight: 0.5g/PCUsage: for Eachine Aurora 68 68mm Mini Racing Drone Package Included:5x CW Propellers 5x CCW Propellers 1x Bag of screws