K7760 Stair Tread Cover Lip Height 1 1/8 in Nose Style Square Installation Hardware Included Yes Surface Design Raised Discs Color Yellow Edge Style Round For Surface Type Existing Concrete Masonry Metal Surfaces Wood Surfaces Includes No 8 Stainless Steel Screws Indoor/Outdoor Indoor Outdoor Installation Method Concrete Anchor Screws Material Aluminum Overall Depth 3 3/4 in Overall Width 30 in Product Type Anti-Slip Stair Tread Strip Thickness 1/4 in Two-Stage Installation No