Wow! This Transformer has a lot to offer! In addition to the refillable body, it has miscellaneous exchange tips. When using the different exchange heads, all tips (with different widths) can be put on top of the Transformer body. This way this Transformer can be pimped from 4 mm to 50 mm!
The difference to its big brother: it has less filling quantity and therefore fits perfectly into the pants pocket. The flexibility of this marker can hardly be outdone.