Cleartex 9Mat Clear Polycarbonate Chair Mat, For Low and Medium Pile Carpet, 38" x 39" (FC111001009R) Clear chair mat to protect your carpet from spillages, dirt and damage caused by every day wear and tear Nine-sided shape fits neatly under chairsand protects a large surface area of flooring Made from super-strong polycarbonate, which is heat resistant up to 212F Easy glide surface to use withwheeled office chairs or dining chairs Gripper back for carpet floors (hard floor and color options also available) Clear unique 9-sided shape measures size: 38" x 39"; mat size may vary slightly due to manufacturing process