The SCS 8200 Series Dissipative Vinyl Three-Layer Mats and Rolls are soft table mats with a three-layer construction that meet ANSI/ESD S20.20 tested per worksurface standard ANSI/ESD STM4.1-2017. The top color layer is durable-Static dissipative vinyl, which has sufficiently low resistance to discharge-Static-laden conductors yet will help prevent the shorting of pins on the backs of printed circuit boards laid on the mat. The middle layer is a highly conductive scrim that provides the main discharge path to ground, and the bottom layer is-Static-dissipative foam, providing a durable nonskid cushion. Compatible with SCS Constant Monitors.