Stair Nosing, Lip Height 1/4 in, Nose Style Square, Installation Hardware Included No, Surface Design Multi-Strip Grit, Color Black, For Surface Type Existing Concrete, Steel Stairs, Includes Not Applicable, Indoor/Outdoor Indoor, Outdoor, Installation Method Fasteners, Material Extruded Aluminum, Number of Grit Strips 7, Overall Depth 4 in, Overall Width 60 in, Product Type Anti-Slip Stair Nosing, Resistance Properties , Series Supergrit(R) 141