Use this 13 by 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 12 by 12in grid with a 4-1/4 by 5-1/2in, 8-1/2 by 5-1/2in grids and a 6 by 6in diagram for ever angle from 0 to 90 in 5 degree increments. Imported.