WEARWELL Heavy-Duty Anti-Fatigue Drainage Mats allow you to purchase multiple mats and connectors to cover a larger surface area. Ideal for wet, dry, or greasy areas. Grease-resistant rubber construction. Rubber surface promotes drainage—liquids and dirt fall through to the floor. Not meant for use with animal fats such as lard, renderings, etc. 7/8" thick. Color: black.