IGG Cleaning Mats are made using an industrial grade, reinforced PVC membrane. The mats are rugged enough to withstand even the most demanding outdoorsman’s expectations and is formulated to withstand the harshest gun cleaning solvents and bore cleaners. Nothing soaks in or through the mat. A unique feature of the mat is the fully attached magnetic strip on the front that holds small parts and screws in place. There is another magnetic strip on the back to keep the mat rolled tightly for storage. They are designed to be large enough to comfortably disassemble your pistol and stay organized.