Use this 13" x 13" glass cutting mat with your Tonic and other scrapbook, card making and paper craft cutting tools. This mat will protect your surfaces and give you a clean durable surface to cut on.Details:Clear13" x 13" overall size12" x 12" grid sizeIncludes 4.25" x 5.5" and 8.5" x 5.5" grids6" x 6" diagram for every angle from 0 to 90 in 5 degree incrementsGlass