Do Not Knock Do Not Disturb Sign - No Soliciting - 10"x7" - .040 Rust Free Aluminum - Made in USA - UV Protected and Weatherproof - A81-279AL My Sign Center signs are proudly Made in the USA My Sign Center signs have Pre-drilled Mounting Holes for easy installation My Sign Center signs are made with Rust Free Aluminum My Sign Center signs are designed for up to 7 years indoor & outdoor use My Sign Center signs have 1 MIL CLEAR UV POLYESTER OVERLAM