Morton Portable Glass ShopIncludes a 15" straight edge. Cut strips, squares, rectangles, and other geometric shapes quickly and easily with this brilliant jig system! The Portable Glass Shop makes it as easy to cut 100 squares as it is to cut one. Measure and set it up once for the size pieces you want, and you'll get crisp, clean, identical results every time. Makes your cutting fast and accurate and reduces waste of material, saving both time and money! A must have for