Tempered-glass dry-erase marker board will not stain, ghost, scratch or dent.Ideal for heavy-use in spaces with moderate traffic.Frameless board design blends seamlessly into any environment.Glass board surface clearly displays any color of dry-erase ink.Non-absorbent surface is easy to keep clean with Quartet whiteboard cleaning supplies.Easy to install with included pass-through mounting hardware; hang vertically or horizontally.Includes one Quartet dry-erase markerInfinity Glass Boards have achieved GREENGUARD Gold Certification