8 x Main Blades Crash Kit Set Replacement Part for Haktoys HAK903 2.4GHz 4CH RC Nano Quadcopter, 6 Axis Gyroscope, Rechargeable, Ready To Fly, Micro Quadcopter Package contents: 2 x white-A main blades, 2 x white-B main blades, 2 x black-A main blades, 2 x black-B main blades Compatible with Haktoys HAK903 NOTE: Blades are NOT interchangeable. Make sure to install the blade in original position.