As an art teacher, I can highly recommend these pens for drawing and Scribblen. The quality of the mines (compared. To Stabilo Fineliner much more stable and longer-lasting) and the color pigments (non-fading and waterproof) is convincing. The selection of the line thickness from 0.05 to 0.8 allows explore various drawing styles. And the price of Stfte sets is more than fair. Buy Absolutely!