[High-quality materials] The surface of the faucet is treated with matte black baking paint for anti-rust treatment: the main body and handle of the faucet are all made of SU304 stainless steel, which is corrosion-resistant throughout, without electroplating requirements, and the inner and outer surfaces are smooth and delicate High Quality Ceramic SpoolWhen using the ceramic spool, it has high hardness, the ceramic spool is of high quality, convenient and light, smooth and labor-saving, durable, no leakage, no wear, no aging. Suitable for hard and warm water. Effects of gravel or sand [(Hygienic Standard) Lead-Free Faucet]: The main body of the faucet is made of high-quality lead-free materials, which is safe for drinking water and can be switched freely between hot and cold High Quality Aerator: The aerator introduces air into the water flow, creating a larger, whiter water flow that is soft to the touch and does not splash. The aerator's filter traps small debris that would otherwise leak from the faucet. Although the aerator can become clogged with dirt and debris, it is still easy to remove and clean PackageExquisite faucet and plumbing accessories, standard 60cm water supply hose prevents chemical corrosion (usually caused by cleaning agents) and rust. Note: The diameter of the installation hole is 3.5-3.8cm