Begreen liquid ink dry wipe V board markers pack of 10 black medium markers PLUS 10 refill cartridges. 6mm bullet tip will write thick intensely coloured clean lines of approximately 2-3 mm in width. Pilot begreen markers are made from 90% recycled plastics and are easily refilled with replacement cartridges, additional cartridges available PN300. The markers are xyzlene and odour free. Constant ink flow from liquid ink designed for maximum contrast with the white board.