ESD Anti-Static Vinyl Mats are made in USA from a gray homogeneous solid vinyl material with a buried conductive layer in between that provides consistent electrical properties. They are available in 2 foot, 2.5 foot, 3 foot, and 4 foot widths. A standard roll is 50 feet long. These ESD Anti-Static Vinyl Mats are ideal for static dissipative and flexible work surfaces required for static sensitive devices. They are considered to be our highest quality mats and the best at maintaining an ESD Safe environment. Suggested service temperature is from -20 degrees F to 160 degrees F. They are also known as ESD Three Layer Mats.