3N1 Magnetic Glass Dry-Erase Calendar Board is a perfect, functional solution for frequent and heavy-use areas in your office, classroom, home or commercial space. Durable, white aluminum frame adds a clean, modern touch to any room. Premium, ultimate glass writing surface will never stain or ghost. Board provides a 30-day monthly calendar view. Glass surface continuously outperforms traditional melamine and painted-steel, dry-erase writing surfaces. Built-in, felt strip lets you pin important notes and pictures. All ink erases easily with a simple eraser (not included). After continuous use, clean occasionally with any spray or wet wipes (none included) made for dry-erase boards. Most dry-erase and glass markers work well with this board. For the ultimate writing and erasability experience, use U Brands dry-erase markers (not included). For safety, this board is made from tempered glass. Actual measurements of the board surface are 35" wide x 23" high.