【 Faucet Certified Guarantee 】Our bathroom faucets are equipped with the UPC certification ceramic cartridge,which has passed 500,000 times ON/OFF test to ensure the leak-free performance and the cUPC NSF certified water hoses which meet U.S. and Canada high-quality standrad. No need to worry about any leaking issue. 【Lead-free & Healthy Material】The matte black bathroom faucet is made of lead-free SUS 304 stainless steel, which ensures to provide you with cleaner and healthier water. Let you get away from heavy metal water. The matte black basin faucet has 7 layers of surface treatment process to protect it from rust, corrosion and it is anti-fingerprint. 【Lasting Surface Gloss】The black bathroom faucet and the black Pop up drainer have passed the 100-GRAM TEST, which can reflect the surface paint adhesion effect. It is not easy to fall off the paint after long time use, and it maximizes the beauty of your bathroom faucet. 【 360° Swivel Spout】The 360° rotational spout design of the bathroom sink faucet for flexible use and wider cleaning area. This black faucet can be used in many places, you can used it as bathroom faucet, rv faucet, laundry faucet, lavatory faucet and so on. 【Easy To Install】This 4 inch centerset bathroom faucets are designed to fit for 3-hole 4 inch basin which is easy to install by yourself without a plumber! The installation mannual is included in the box, and you can also contact us for help anytime.