Description Sign, "Door to Remain Unlocked", Self-Adhesive, 2 in. X 23 in. Black Lettering on White background: "This Door to Remain Unlocked During Working Hours" Silk screened with UV inks, clear laminated for durability and fade resistance. Mounting surface must be clean, dry, smooth and non-porous. To mount on a porous or textured surface, such as brick or concrete block, use Sign On aerosol adhesive.
