Heavy 28-gauge porcelain-on-steel surface on 3/8" backing for years of dependable service. Includes 1 marker and eraser. Hard porcelain surface is designed for heavy daily use perfect for schools and offices. Hard porcelain Surface accepts magnets and resists ghosting, scratches and dents. Premium frame is wide satin anodized aluminum with crimp construction and precision mitered corners for extra strength. Includes marker, eraser and marker tray with protective end caps. Made in the U.S.A. - TAA compliant 50 Year Surface Warranty