This ceiling light plate usually mounting on the ceiling floor and it is used for hanging a chandelier or pendant light. Extremely suitable to use at places like home, office, bookstore, or other places.Specification:Color: SilverMaterial: Galvanized Carbon SteelThread SIze: M10x1.0, M4x0.7Thickness: 1.5mm / 0.06 inchInner Dia.: 10.5mm / 0.41 inchOverall Size: 120x18x17mm / 4.72x0.71x0.67 inch (L*W*H)Package Content: 1 x Ceiling Light Plate (screws, screw pipes, washers, wire, wire fastener included)Are there any advantages of the product?Carbon steel material with zinc plating on the surface, the zinc coating provides good rust resistance, durable to use.There are screws and nuts included in the package, which can save you time and effort.Instruction:Convenient to install, screw this plate into your round ceiling light base.