Changeable Copy Letters by Pronto are constructed from clear acrylic blanks, precision injection molded to a 0.080" thickness.  These blanks will not warp or blow away under most conditions.  Raised edges prevent scrathing.  Feet on the base of each letter keep it from being frozen to the track in winter. 

MoonGlo Letters are transparent letter with silk screened black background.  Letters are made with a Beveled Overlay System.  These letters are priced the same as other Pronto letters.