Private Parking Only Sign - 12x18 Our Parking Signs are constructed of rust-free, heavy gauge, durable aluminum Our Parking Signs are made with 3M Engineer Grade Reflective sheeting and 3M inks Our Parking Signs are rated by 3M for at least 7 years no-fade service Our Parking Signs have holes drilled at top and bottom center for easy mounting Our Parking Signs are manufactured to Federal MUTCD quality standards