This Black V2 stair nosing tread supports a height of up to 20mm and is designed for use on the edge of your steps to increase stair safety. This stair edging trim can be used in conjunction with a number of flooring types such as Laminate, Wood and Tile to Vinyl Flooring or Carpet. Featuring black rubber Anti-Slip pads for added safety. Simple screw down installation with the screws provided.