STAIR NOSING: SN001 and SN002 represent an easy solution for applications on square nose tread. They can be used in conjunction with any floor covering or with our studded rubber tiles to create color combinations that provide an attractive and safe construction for the visually impaired. SN001 and SN002 are also recommended for use on the top step in lieu of a stair tread to better fit with the landing tiles. Designed to fit with tiles of different thickness by placing the tiles over the lip or by cutting the lip and butting the tiles against the nosing.