Aluminum Door Knobs, 2 Pack Sliding Door Knobs describe: 1. High-quality aluminum alloy material, with good long life and anti-rust performance. 2. Matte black surface, simple and modern style, very suitable for decorating your furniture with elegant style. 3. Comes with mounting screws, you can easily install it on any flat door panel with a Phillips screwdriver. 4. Great for wooden sliding doors, cabinet doors, cupboards, drawers, sheds, wine cellars and more. feature: Name: sliding door handle. Material: aluminum alloy. Colour: Black. Overall length: 21.1 cm. Center hole length: 19 cm. Width: 2.5 cm. Height: 3.6 cm. Scope of supply: 2 door handles. 4 screws. color silver notes: 1. Due to lighting and monitor settings, the color of the item may be slightly different from the picture. 2. Manual measurement, the shown size may have 0.1-0.2cm error.