Aluminum signs are great for outdoor use! heavier duty than plastic signs.
Aluminum fire extinguiser signs are 4"(w)" x 18"(h) with a 1" bend and 2 pre-drilled holes for mounting.They are double sided .040 white aluminum.
Heavy duty .080 aluminum signs. great for outdoor use! they come standard with radius corners and 2 pre-drilled holes for post mounting. These are single sided reflective signs.