Rubber-Cal 03_126_INT_WBK"Dura-Chef Interlock" Anti-Fatigue Rubber Matting, 5/8" x 36" x 36", Black Holes in this drainage mat allow liquids and debris to pass through, providing a clearer surface Excellent traction with these non-skid mats, ensuring a safe footing to maximize productivity while reducing the risk of injury Interlocking anti-fatigue mats are individually moveable and easy to clean; each tile weighs only 18 lb Non-slip flooring with interlocking tiles to cover large spaces; great for work shop flooring or mats for kitchen floors Natural and reclaimed rubber standing mat for anti-fatigue comfort for employees who stand for long periods of time such as cashiers and assembly workers