The guard acts as a buffer between your case and the metallic dust that accumulates over time. The guard can easily be exchanged out if needed.
It may be hard and take some time to align the stickers on AirPods, however the elago AirPods Dust Guard is made of metal which can be installed easier and cleaner than any other similar products on the market.
The thickness of the plate is 0.04mm. Experience flawless use of the case with the Dust Guard installed.