I can not judge the life of the product because I just use it but I think the color is beautiful on paper and that when a word highlights the ink does not bleed is usually what I gene is usual to feel they have made a pig of work. Additional colors like lilac and violent are beautiful too. Frankly this stabilo pouch and handy for re-storing. For my part, I am very satisfied with my purchase without of course whether the life of "stabilo" is good. I réactualiserai my review on that basis.