Drones can break just like any other gadget, and if you need a new propeller, this might do the trick.
From Laptops Direct
DJI Matrice 300 Series 2195 High Altitude Low Noise Propeller
Athema Services
dji matrice 300 series-part15-2195 high cp.en.00000271.01 - eet01
Clifton Cameras
DJI M300 2195 Props (High-altitude)