The CW Single-Motor Propeller Set for Alta X from FREEFLY is a pair of replacement counterclockwise propellers that can be swapped out in the field if you have a damaged blade or blades on booms 2 or 4. These props do not include the ActiveBlade center hub.
You may have propellers on your Alta X that do not have orange tips like these do, but they are interchangeable. You can mix and match between black and orange-tipped props on your Alta X with no change to flight performance.
UPC: 742574253221