The pens per se have not changed since 2011. That's why I buy the blue to write more. Although Mitsubishi has always nich not attempt it with the peeling paint, are still top. This pin assortment unfortunately grottigsten colors are thus not appropriate for the office. I'd rather have blue, black, red, yellow, orange, green, light blue and light green, instead of this color combination, because I can not do anything with, among others, Pink.