Pentel Maxiflo Whiteboard Marker Fine Black MWL5S A pack of 12 NWR5133 - YouTube
Pentel Maxiflo Flex Liquid Ink whiteboard marker, 4 mm (Box of 12), Red | KVG
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