Item Type: Door Knocker Material: Brass Color: Black Weight: Approx. 769g / 27.1oz Product Size: Approx. 20x18.5cm / 7.9x7.3in Scope of application: double door, wooden door courtyard, etc. 1Rugged and durable, made of high?quality brass, it is not easy to rust and fade, and long service life. 2The well?designed, unique pattern appearance design gives people a sense of majesty. 3Exquisite craftsmanship and fine workmanship are good choice for your furniture hardware accessories. 4It is easy to install, and it contains accessories, so you can install it immediately. 5Easy to use, with heavy pull, simple structure and easy to use, and has a long collision resistance.1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1 x Door Knocker 2 x Screw Sleeve