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These 12" w x 8" emergency exit signs are designed to conspicuously mark the locations of emergency exits and is avaiilable in your choice of self-adhesive vinyl, rigid plastic, or aluminum. Item # 00121 is similar, but has red letters on a white background.
For self-adhesive signs, the mounting surface must be clean, dry smooth and non-porous. For porous materials such as brick or cement block consider a rigid plastic or aluminum sign or use a third party adhesive.