Solid product. The compartment width is a bit tight with 90mm, enough with me but in 90% of cases. The ability to leave the lid disappear under the box completely, is refined - because the designer has come up with something. I would have wished that the designer would have done a little more thinking about the stacking of multiple boxes thoughts - mehere boxing each other are not too stable matter. For the product, however, was probably not intended. Ideal not only apply to business cards, but also for the duplicate my phone card collection.