There is only one STABILO BOSS. Did you know it was back in 1971 that the highlighter was developed by a designer who accidently squashed a plastic mould and decided he loved the look? and more than 45 years later the STABILO BOSS is still a high selling highlighter. The shape is recognised all over the world. Its high fluorescence and long life makes it a choice. BOSS highlighter is of high quality and long lasting. With its chisel tip. it allows you to highlight both the broad work with the 5 mm side and more detailed accurate highlighting with the 2 mm part. The STABILO BOSS can be used for both paper. copy and fax. Also don't worry if you forget to replace the cap. you are able to leave it off for up to 4 hours and the highlighter will regenerate once the cap is replaced. In brief: This is a BOSS you can believe.