... If it were not the problem with the disappearance of Scripture. NOT indelible ink So (ie not for important texts such tests, presentations and similar use !!!!)! It disappears in the heat supply and which can already be the sunlight or the temperature in the car. Yes, you can make them visible again in the freezer, but then of course all wegradierten texts reappear !!! The consumption is gigantic! A cartridge (we have it really be compared!) Enough not nearly as long as a normal ink pen cartridge and cost a multiple of! That's just too beastly into their pockets!
Otherwise, however, it must be said that the pins super writing (very nice picture, great writing river) and also blurring rarely - our left-handers in the family therefore only writes it. However, this ink is water-soluble. The erased disappears better than ink killers and also write about can be made immediately and looks like the first time.
For small items recommended for larger quantities quite expensive, not indelible!
