All the advantages of long-wearing resilient rubber, plus outstanding flame retardant (ASTM-E84 Flame Spread Rating of 75 or less).12-1/4" deepOutstanding flame retardant advantageLow profile raised disc design for easy cleaning.Cove riser available for face of stair. 7" high. Creates a "finished" look for your staircase.Matching Landing Tile is also available.