Adopting great quality material, which let you use for a very long time. Though it is simple in design, it's so practical when you use it. The excellent workmanship of our product will bring you a good experience. Easy and convenient to install and use, it is a very useful door knocker.Features- Color: Silver.- Size: 13.00X6.00X2.00cm/5.11X2.36X0.79 inch.- Material: Zinc alloy.- Used on entry doors to provide privacy while viewing from inside the home, and also as a decorative door knocker for visitors - It is made of material for long time and durable use.- It has a simple design, but very practical in use, giving you a good using experience.- It is sturdy, not easy to break, prevent corrosion, surface rust prevention, not easy to paint off.- Smooth surface and nice polished, neat and generous, so don't need worry about harm your hand.