This is a qualitative good option if you need to store a lot of writers and utensils. Capacity per small pocket 8-10 pens or other utensils clean. In 12 subjects thus have 96 writers place, but you have 21 compartments, so a lot of space. The desk now looks very tidy and the box has a very good level. The box is easy and fitting together very quickly. The price is also very pleasant. We recommend! Thank you