I bought this case to have a good and portable protection for my bass, eflat and Bb clarinet mouthpieces and ligatures.
The design force you to leave each of the mouthpieces with mounted ligature and the protective cup - so why Protec offers separated place for the ligatures? This does not have any sense, unless you own many ligatures which you always want to have with you. This case is so big that I could not save it anywhere in my double clarinet case.
Without the ligature and the cup mounted on the mouthpieces, nothing in the case is able to hold them well, and the materials used inside the case are very hard so something could scratch the delicate part of the mouthpieces (facing for example). The mouthpieces are "flying" forwards and backwards inside the case, so the case is way to big for the clarinet mouthpieces, not offering any decent protection.
The case arrived broken - the internal cloth which separates the zipper from the mouthpieces was unglued. The materials used outside the case are good and hard, but even if the case would accidentally fall on the ground, the mouthpieces could break because nothing holds them well.