OHP Pen STABILO Permanent Medium Wallet of 4 Assorted Colours

Writes on almost all smooth surfaces STABILO quality for a variety of uses - from fine writing to clear marking Black shaft indicates permanent ink; grey shaft indicates water soluble ink Ideal for any transparency, non slip grip zone and practical clip; high cap off time of up to 72 hours Available in three line widths, superfine (0.4 mm), fine (0.7 mm) and medium (1mm); comes in eight colours