Stylish and three times easier to clean . The Nobo Diamond Glass board range has a magnetic tempered safety glass surface with ultra-erasability and the highest resistance to ink stains pen marks scratches and dents. These glass tiles in 300x300mm or 450x4500mm sizes are a useful and colourful additions to your office or home environment. Supplied with Nobo pen set of Nobo extra strong glass board magnets. Lifetime guarantee.