Pentel Straight liquid back pressure whiteboard pen, mwl5m thick rod 6.0mm/mwl5s thin rod 4.0mm round pen head art supplies|Dry Erase Markers| - AliExpress
Pentel Maxiflo Liquid Ink Drywipe Marker Eraser Set
Pentel Maxiflo Flex Liquid Ink whiteboard marker, 4 mm (Box of 12), Blue | KVG