Save time and decrease frustration with these stain glass layout frames. A simple way to hold all your pieces in the perfect circle to make your cutting and soldering easy and designs flawless. The layout frames are made from quality hardboard for lasting durability and strength. Precision holes are added to the frames to secure it with pins or nails to your work surface. Four perfectly centered cross hatch markings are also etched into the circles to help line up your glass for intricate designs. Save some cash and get free shipping with bundles! - Odd Bundle includes the 7, 9, 11, 13, and 15 in circle layout frames. - Even Bundle includes the 6, 8, 10, 12, 14, 16 in circle layout frames. - Small Bundle includes the 6 in through the 11 in circle layout frames. - Large Bundle includes the 11 in through the 16 in circle layout frames. Do you need a custom size for your project that is not here? Send me a message and I can make you a custom quote.