National marker wet zone shadow board, green/black,68 x 30, aluminum – sb120al many manufacturing and food processing facilities are implementing 5s shadow boards to help reduce cost and down time by keeping cleaning supplies (and other tools), in a central location, neatly stored, and always accessible. features: great for industrial, manufacturing applications. includes shadow board and hardware for mounting tools designed for vikan brand tools (sold separately): tank brush, 24′ single blade squeegee, long handle scrub brush, large hand brush, and 3 gallon bucket. durable, industrial grade aluminum. protected by sign muscle liquid laminate temperature range of -40 to 250