Fitment: This part can make your 1" Bar to fit the 1-1/4" Handlebar riser clamps Easy to install. Come with anti-Slipped Knurled and Slotted wires. the kit can convert the 1" mount diameter handlebar to 1-1/4" for installation Size: Length:5 inches, Knurl center to center:3.5 inches. Material: Made from heavy-duty steel, not soft aluminum.Gloss Black(Copper+Nickle+Powder Coated Black),High Standard Rust-Proof Plating. Sold in Pair: Sold as a set with an upper and lower Fitment: This part can make your 1" Bar to fit the 1-1/4" Handlebar riser clamps.