Good and stable order portfolio

This binder is a solid order portfolio in the based on 12 subjects, documents can be stored separately. This can sometimes also larger amounts accommodate in a small number of subjects (tested with 3 x 50 sheets of A4 paper). However, not all 12 compartments solid according befüllen.Die Eckspanner appear, but must pass the endurance test yet.
The top strap buckles MMN relatively quickly, since the Eckspanner ever hooked shortly. However, this is at all Folders file that I own so, therefore no deduction.