Bo-Nash Non-Stick Ironing & Craft Sheet can be used for hundreds of applications from crafting projects to baking cookies and casseroles. It has a lifetime warranty against any defect in workmanship. Reusable, non-stick, transparent crafting and ironing sheet. Made from non stick PTFE over fiberglass that is tough, durable, two sided and can withstand very high temperatures to make your crafting projects easier, cleaner and quicker. 18 x 11.9 inch.