Coda Low Profile Circular Non-Magnetic Glassboard, 36 Diameter, White Surface Board features water-based paint making it sustainable with a modern aesthetic. Ideal for personal offices and conference rooms. The 1/4 tempered glass is made from recycled glass and sand that's been thermally treated for strength and safety. Non-porous glassboard won't absorb ink, meaning the dry erase surface won't stain or ghost over time. Includes four markers, an eraser, and a holder which can be mounted on the board or the wall.