These expensive markers are not worth what they claim, these markers belong in a 99 cent store. After a week of having them mine were not usable anymore, the ink runs out fast and the tips Fray and disintegrate after every single use by the time a weeek was up using aprx 3x. You have no ink and no marker tip left these cost me approximately $100 for this set and if if I had to go back .I would go to the dollar store and buy the cheapest set of markers that have before purchasing these ever again do not waste your hard-earned money on these horrible marker.