Staedtler 351 B WP4 Board markers Lumocolor whiteboard marker, Staedtler Box with 4 colors (Office supplies & stationery)
Against Pelikan or other manufacturers, it relies on the DIN. 2 days with an open cap immediately write, that's quality. Packaging is exemplary, pen tips are just as one wishes, universal. There is really nothing to complain about in my view, price g