Active classrooms that are used daily need heavy-duty chalkboards that teachers and students can rely on. Porcelain surface board features a durable, smooth writing platform that is guaranteed to last and deliver superior performance. Anodized Aluminum Frame—Heavy-gauge wrap-around crimp construction. Board Type: Magnetic Chalk; Board Width: 72"; Board Height: 48"; Surface Material: Porcelain-Steel.Package Includes: Includes full-length accessory tray/rail and mounting kit