0.018 in. (0.46 mm) red laminated dissipate vinyl. Antistatic, low tribocharging, portable, protective worksurface with two ground snaps. 15' long common point ground cord. Provided with 1 megohm resistance between mat and ground and banana jacks for two wrist straps. Large threaded grounding clip. Construction is a supported laminate for added tear strength. Holds up longer in demanding and rough "Field Service" environment.