M+A Matting 4419 Traction Hog II Nitrile Rubber Drainable Slip-Resistant/Indoor Floor Mat with Holes, 5' Length x 3' Width, Black Diamond patterned grit top provides a slip resistant surface in wet and oily environments High density closed cell nitrile rubber cushion has 15 percent recycled content Grease and oil proof, chemical resistant Beveled edges for safe transition from mat to the floor Lifetime anti-microbial treatment to prevent odors and degradation of the mat