These signs are built to last a lifetime; maintenance free! The main box is made from 3003 and 6063 aluminum and given a durable powder coated finish. The frame itself and sign base is also aluminum, and will never deteriorate. The boards, if selected, are fully composite and will never rot. All hardware is stainless steel and will never rust. Every effort is made to pay the closest attention to detail. Even the aluminum number stand-offs are painted to match the sign frame.