The WAZER Cut Bed is 4 inches thick and made of finely corrugated polypropylene plastic with top and bottom surfaces heat welded together to ensure surface flatness and extend the cutting life. It is also reversible so both sides can be used. The Cut Bed is also oversized to allow for an additional fastening border. The grid pattern acts as a visual aid and reference indicator so you can easily adjust the placement of your material in your WAZER to match your file placement in the Wam software. The Cut Bed is easy to replace once you do not have sufficient support or fastening points for the materials you would like to cut.