First, a couple of "technical data":
The cards to be stored can be up to 56 x 86 mm in size.
This covers "normal" business cards, but longer sizes do not fit, so measure before!
The box is about 3 cm deep, how many business cards actually fit, of course, depends on their thickness.
The box is made of clear hard plastic and can be used unfolded as a stand on the desk;
while the front part on request can also be removed completely.
The box comes in handy acting properly processed and served its purpose.
For more than average three star but I can not bring the following reasons:
The box should be suitable for both road as well as at home, but shows both areas of application weaknesses.
When traveling, the material is according to experience only limited suitability, since the plastic flying around in your purse or briefcase can be easily compressed and is then expected to damage.
And for the native desktop, there are simply nicer, wertigere business card boxes.
Too bad for the use at home is also, that the bottom surface is perfectly smooth;
with a rubber, felt or other coating of the floor the box would slip less and rattle.
Due to their simple design and very light material, it is, however, well adapted to be secured to a door by adhesive pad, for example.
Conclusion: Okay - no more, no less.