Premium shatter-resistant tempered black glass surface will never stain or ghost. Frameless profile hides all hanging hardware and enables hanging boards side by side for a larger writing surface. Includes white liquid dry erase marker and aluminum marker tray. Mounts vertically or horizontally, hardware included. Backed by the manufacturers lifetime warranty. Premium tempered glass dry erase surface never stains or ghosts. Black glass background creates high contrast with any bright color dry erase or glass markers. Glass is the highest quality dry erase surface available. Perfect for heavy writing use in any office, home or commercial environment. Modern frameless design hides all hanging hardware. Frameless feature enables multiple glass boards to be hung side by side to create an infinite writing surface. Works well with all dry erase markers and liquid glass markers. Try U Brands dry erase markers for ultimate board performance. Mounts vertically or horizontally, includes hassle-free mounting hardware and instructions. Lifetime Warranty. This product is heavy and/or oversized and may need more than one person to handle.