Alleviate those concerns around sensitive test areas and equipment. Cord-grounded design provides maximum static dissipation to keep your office environment secure and safe. Pebble grain 3/8" thick sponge increases comfort and reduces the strain of standing for extended periods of time. Includes 10-ft. ground cord. Mat Type: Anti-Fatigue Mat; Application: Indoor; Material(s): Sponge; Style: Rectangular.