To The Product:
Both covers are made of hard plastic, but I did not find too bad.
The Great cover, Warning, only for the 3+ GoPro housing. (Without plus the cover will not fit). This really fits perfectly to the body. A drop ausversehntliches is in my opinion impossible.
The small cover fits just as perfectly, naturally at the 3 + GoPro camera lens.
A friend has bought the original GoPro covers for 20 including shipping - these were exactly 15.01 too much.
Would buy again and recommend this to anyone.