Cons:
Unit box with viewing window for all Hazet Drehmos, therefore not 100% fit for the small. The key is good but there protected, even if not completely fixed.
I would indeed want a higher quality and exactly the right storage, the bottom line is you but you will notice that more than most other manufacturers and at the end it is convenient and price-conscious and therefore perfectly fine. Perhaps in future times introduce an accessory for the meticulous hobbyists?