The inner side of the faucet is made of high quality brass, with excellent chrome plating, rust and corrosion resistance, durable and sturdy. Knob, smooth surface is easy to operate . And the water is very soft and does not splash. Delay function. They will automatically shut off with a 4-6 second delay, saving water and money. It is easy to install using some of the included mounting hardware. Suitable for use in kitchens, bathrooms and hotels. Easy to clean. It can be cleaned with mild soap to ensure the copper effect. Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be some color difference, the actual object received shall prevail.