TONIC STUDIOS-Tempered Glass Cutting Mat. Use this 13 x 13in 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. This mat features an overall 12x12in grid with a 4 1/4 x 5 1/2in, 8 1/2 x 5 1/2in grids and a 6x6in diagram for ever angle from 0 to 90 in 5 degree increments. Imported.