NoTrax 490 Dura Trax Safety/Anti-Fatigue Floor Mat with Rubber Top Surface, for Dry Areas, 3' Width x 5' Length x 9/16" Thickness, Black Durable rubber diamond-plate top surface provides non-directional traction, and is easy to clean Top surface is combined with dense closed cell foam base utilizing NoTrax exclusive UniFusion technology UniFusion bond guaranteed for the life of the mat Sloped beveled foam on all 4 undersides affords easy access onto and off of mat Manufacturer's warranty of 3 years is provided