One star deduction there is that not all the pins give the same intensity the color. It is not dramatic, but still noticeable in yellow, gray and light blue. The Yellow pen scratches do something on paper and must be distinguished from the white underground bad.
Nevertheless - a huge colorful palette and the case provides overview, saves space and I hope it lasts a long time - are possibly even later supplemented only by the renewing of spent pins must - that would also be in a certain sense ecologically.
An idea that Stabilo quite happy to continue and may -entwickeln and sure many users is proving a service.