Handi Tread non-slip Nosings wraps over the edge of the stair to prevent slips and falls on stairs. The nosing is 2.75� wide by 30� long, and the 1.125� overhang wraps over the front of the step to provide instant traction on these slippery edges. Built from aluminum, the stair nosing is corrosion resistant. It includes 9 mounting holes and 9 color-matched screws for easy installation. Use the non-slip nosings for concrete, wood, masonry, metal, and other surface.