Wallet of 8 permanent OHP marker pens from STABILO. Use STABILO quality for a variety of uses from fine writing to clear marking. The pen writes on almost all smooth surfaces. The black shaft indicates permanent ink, while the grey shaft indicates water-soluble ink. Take advantage of its high cap-off time of up to 72 hours. The marker is available in 8 colours and is available in 3 line widths: superfine (0.4mm), fine (0.7mm), and medium (1mm).