Achim Home Furnishings Anti Fatigue Mat, 18 inches x 30 inches, Black Eyed Susan, 18" x 30" Size: 18 inch x 30 inch; material: Eco PVC foam Resilient foam reduces fatigue when standing Supportive foam layer conforms to the contours of your feet Beveled edges, non-slip back Care instructions: clean with brush, broom, vacuum or shake briskly. Occasionally rinse with a Garden hose. Air dry