Iron X handrail Arch #1 works well on 1 or 2 stair risersThis handrail will cover1 Risers 2" to 12" TallArch #1 measures 12" center-to-center of postsHere Is What Is In The Kit1 (one) Iron X Handrail Powder Coated Black2 (two) Stainless Steel Post Mount Brackets2 (two) Stainless Steel Escutcheons2 (two) Snug Strips8 (eight) 5/16" x 5" Masonry Screw Fasteners1 (one) ¼" Masonry Drill Bit1 (one) Driver BitInstallation Instruction SheetThis kit includes everythingyou will need to attach the handrail to your steps. Please choose the appropriate fasteners for your stair materials.For concrete you should purchase(8) 5/16" x 2¼" Concrete Screw & ¼" masonry drill bit & driver bitFor concrete covered with brick or pavers (INCLUDED IN THIS KIT) (8) 5/16" concrete screws long enough to go through the brick and into the concrete substrate & ¼" masonry drill bitFor wood you should purchase (8) 5/16" wood screws long enough to go through the stair tread and into the stair stringers or back blocking