STABILO BOSS quality and long writing length makes it the number one highlighter choice for use in the office, classroom and at home. The STABILO Anti-Dry-Out Technology promises that the lid can be left off for up to 4 hours without the ink drying out. The robust wedge tip enables broad area highlighting (5mm) as well as fine underlining (2mm).Good for the environment, the BOSS Original highlighter can be easily and conveniently refilled with the BOSS Original Refill.