Bi-silque Dry-Erase Glass Board, 36" (3 ft) Width x 48" (4 ft) Height, White Glass Surface, Rectangle, Horizontal/Vertical (BVCGL084407) EachDry erase board features a tempered glass surface that never ghosts, cleans easily and is great for extensive use. Ultra modern style with square corners provides a professional look for any room. Passthrough mounting system makes installation easy to quickly display this board in any convenient location vertically or horizontally. Glass surface can be used with wet erase and dry erase markers. Dry erase board is perfect for offices, training