The SCS 8840 Dissipative ESD 2-Layer Rubber Worksurface Mat Table Roll, Gray, 0.065 in. X 24 in. X 24 ft. is constructed using a top color layer of static dissipative neoprene rubber laminated to a bottom black layer of conductive neoprene rubber. Both layers are made from vulcanized synthetic rubber, which offers resistance to oil, grease and most common solvents. They offer increased resistance to heat and hot solder as compared to vinyl or olefin materials. Compatible with Continuous or Constant Monitors. Includes ground cord and installed snap fasteners.