These things were absolutely BEAUTIFUL!! They are constructed of a 1/4"-thick Aluminum backer with Brushed Aluminum Chemetal face. The slats are 1/8"-thick Aluminum with the same Chemetal face. They have Aluminum Angle chemically welded to their backs to keep them stiff. The Buttons are two layers of 1"-thick Acrylic painted a very metallic Copper. The slats sit down into slots in these buttons and can be removed to make changes in the menu. We don't have a good photo showing them in use, but that's OK because they look so cool without any letters on them! These ultimately went to the Contemporary Resort at Disney World.