Pilot Boardmaster S P-WMSRF8-B Black Ink Cartridges, 3-Pack, with Test Writing Memo Paper

Pilot Boardmaster S P-WMSRF8-B black replacement ink cartridges, three-pack, offered with test writing memo paper. Compatible only with Boardmaster S extra-fine and fine-point whiteboard markers. Pull out the empty cartridge and insert the replacement. Check your marker model before use.