These inks come from "overstock" Peter van Ginkel. Cartridges have advantages over cans; the cartridges are completely sealed, so will not dry out. After using some ink the cartridges are closed again. You need a caulking gun for these cartridges. They can be bought in any hardware store. As you can see they are still in very good condition. Of course we cannot check inside the cartridges. Therefore the cartridges are sold, without guarantee for a price of 10 Euro each (excl. VAT)