Esselte 23612 - 10 boxes Archive Batch back 100mm - Assorted Colors 3 Blue / 3 Green / Red 2/2 Yellow (Office Supplies)
Casually, it's not very easy to find format A4 storage boxes of more than 6 cm thick; what I really need. If you do not believe me, look! ... Those sold here are very practical, solides.et quite elegant. The varied colors also allow faster retrieval.