• This is a solid brass "Pipe Bracket Hanger Pipe Socket Set of 2". Made in Japan by artisans, genuine domestic product • "Solid" means that the metal surface has not been plated or painted or left in the same condition • Size: Outer diameter 1.1 inches (28.4 mm), Inner diameter 1.0 inches (25.7 mm), Height 0.9 inches (22 mm), Washer thickness 0.2 inches (4.Included screws: Set of 2 each • The more you use the solid brass color, the color will change to an antique look. If you want to restore it to its clean condition afterward, simply wipe it with a commercial polish and it will glow a little and return to its original color • "Sharpened Brass" products have a relatively fast color change over time. If you want to keep it as clean as possible, wipe it with a dry cloth frequently