These corner curtain rod elbow connectors are for bay window or corner window rods up to 3/4" (19 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: 0.75"/19mmTotal Size: 2.28" x 2.28"/58 x 58mm (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.