The AG-168-RD-102 is a Double Sided UL Approved Exit Sign, that has a 100 Foot Visbility which will Meet or Exceed any International Building Code or Internation Maritime Code. They can be Side Mounted on Walls or Top Mounted to Ceilings. They come complete with Chevrons to change the direction you want to Point or Direct them to the actual Exit. All Mounting Hardware is Included.