STABILO BOSS ORIGINAL ARTY is for the creators, the players, the tryers, the wanna-have-funs, the daredevils and for all those who wish to get more out of life by making it a bit more colourful. Don't worry if you forget to replace the cap, you are able to leave it off for up to 4 hours and the highlighter will regenerate once the cap is replaced.
eBay