Stair Nosing Lip Height 1 1/8 in Nose Style Square Installation Hardware Included Yes Surface Design Raised Discs Color Brown Edge Style Round For Surface Type Existing Concrete Masonry Metal Surfaces Wood Surfaces Includes Stainless Steel Screws Indoor/Outdoor Indoor Outdoor Installation Method Fasteners Material Aluminum Overall Depth 9 in Overall Width 48 in Product Type Anti-Slip Stair Tread Standards ANSI OSHA Thickness 1/4 in Two-Stage Installation No