Glass board surface clearly displays any color of dry-erase ink. Infinity edge gives a modern look to any office or conference room. Easy to install with included pass-through mounting hardware. Glass board can hang vertically or horizontally. Includes one dry-erase marker. Glass board surface clearly displays any color of dry-erase ink. Infinity edge gives a modern look to any office or conference room. Includes one dry-erase marker. Sold as 1 Each.