These everyday non-permanent whiteboard markers are optimised for use on glass whiteboard surfaces with superior ink lay down. They are fast drying and can be removed easily using a dry cloth. These liquid ink pens also have a handy reservoir window showing ink levels so you never run out at a crucial moment. Available in a choice of colours to meet all your presentation needs; ideal for schools, offices and at home. Pack of 4 dry wipe pens with a bullet tip 3mm for consistent bold smooth lines. Use with a Nobo glass whiteboard for optimum performance.