Best-Rite's Dotted Grid TuF Rite Markerboard with Aluminum Trim and Maprail features a pale dot grid for straight, easy-to-read writing. And, it lasts up to three times as long as traditional melamine boards; a thermal fuse technology improves erasability and keeps your board looking good. A maprail makes it easy to hang additional materials and a tray keeps markers and erasers at hand. Aluminum trim adds durability and a finished look.