Crown® CD 0312YB 500 Standard Anti-Fatigue Mat, 12 ft L x 3 ft W x 9/16 in THK, Non-Porous Extruded PVC, Deckplate Surface Pattern, Industrial Grade PVC Foam Base, Resists: Flame, Slip and Wear Crown® CD 0312YB 500 Standard Anti-Fatigue Mat, 12 ft L x 3 ft W x 9/16 in THK, Non-Porous Extruded PVC, Deckplate Surface Pattern, Industrial Grade PVC Foam Base, Resists: Flame, Slip and Wear