Use At Own Risk Sign - 12x18 Our Property Signs are constructed of rust-free, heavy gauge (.063), durable aluminum We make our Property Signs with 3M Prismatic Reflective sheeting and 3M inks Our Property Signs are rated by 3M for at least 7 years no-fade service Our Property Signs have holes drilled at top and bottom center for easy mounting Our Property Signs are manufactured to meet Federal MUTCD standards