Especially during night navigation in busy areas, it is often difficult to identify a watercraft by its lights. This information board allows you to categorize all vessels you encounter at sea in just a few steps. A guide and additional tips make using the double-sided information board easy, turning the identification of vessels by their lights into a breeze. Of course, the information board is also suitable for exam preparation or for getting ready for a trip, as well as for re-entering after a long break. Thanks to its waterproof lamination, the board can be used on board and withstands even the harshest conditions.