Black and Decker's thermal line, TimeShield, is designed to give your documents, business cards, or other important projects a professional and clean look. Offered in a variety of sizes, this crystal clear line is not only going to make your documents look neater, they will seal and protect them to last. This line is available in both 3 and 5 mil thicknesses. Compatible with most machines but be sure to check out Black and Decker's excellent line of heavy duty pouch laminators to complement the use of this line.