These corner curtain rod elbow connectors are for bay window or corner window rods up to 1" (25 mm) in diameter. They are suitable for bedrooms, living rooms, dressing rooms, dining rooms, offices, kitchens, or other public places.Specification:Color: Bright SilverMaterial: Stainless SteelInner Diameter: 1"/25mmTotal Size: 2.48" x 2.48"/63 x 63mm (L*W)Packing List: 2 Pcs 90° Curtain Rod Corner Elbow Connectors with 1 Pcs M2.5 ScrewdriverAdvantage:This curtain rod extender connector is made of 304 stainless steel, with high hardness, strong load-bearing, and durability. The surface is painted to prevent rust. Multiple screws can firmly fix the curtain rod, and the included screwdriver makes installation easy.