Brady 73509 7" Height, 10" Width, B-324 "Exit" Sign, Self-Stick Polyester, Red On Glow In the Dark Background Brady offers many different exit and directional signs including bradyglo framed and frameless exit signs which are immediately visible in emergency situations Brady's safety signs use internationally reported pictograms and help promote greater communication of safety messages Brady B-324 bradyglo material is a glow in the dark (photoluminescent) pressure sensitive polyester Brady B-324 is used for exit and directional signs, identification of fire alarms and extinguishers, low location egress pathway markings and directional systems for escape or evacuations routes In accordance with ASTM 2030-99 recommended uses of photoluminescent safety markings