When displayed in a relevant part of a building, this advice can save time to people that are not familiar with the overall layout. It is also imperative in a time of an emergency and can be a potential life-saver. Many emergency lights have either the wrong style of legend or have none at all so these adhesive vinyl signs stick over the light to create an illuminated exit sign. The legends come in packs of 10 and are made by Jalite. Fixing requires nothing as this is self-adhesive.