The Desktex Glaciermat is manufactured from tempered glass for the ultimate in protection, elegance and style Protects from scratches, scuffs and spills and heat resistant to 1800°F Crystal clear. Ideal for viewing notes, lists or photographs safely stored under the mat surface Use as a handy scribble pad with dry erase pens (not included) for everyday notes and reminders Complete with silicone feet for added stability Please note, due to the manufacturing process this product has a +/- 5% size tolerance. All measurements are rounded to the nearest inch Rectangular with rounded corners - 20” x 36”. 1 Year Warranty