Crown® Spark-Safe™ CD L312TX 580 Anti-Fatigue Mat, 12 ft L x 3 ft W x 1/2 in THK, Rubber, Textured Surface Pattern, Rubber Foam Base, Resists: Spark, Slip and Wear Crown® Spark-Safe™ CD L312TX 580 Anti-Fatigue Mat, 12 ft L x 3 ft W x 1/2 in THK, Rubber, Textured Surface Pattern, Rubber Foam Base, Resists: Spark, Slip and Wear