XUEMEI WATER SAVING: Water efficient faucet reduces overall water usage without sacrificing water pressure. Sensor powered by 4pcs AA Batteries, shall last approximately 7000 times or 3 years for daily home use. AUTOMATIC OPERATION: Automatic sensor touch-free faucet with adjustable sensoringg range makes your life more convenient and healthy.It can be sensored within a fixed range and stop when you move away your hands. RELIABLE QUALITY DURABLE: Made of Chrome finished solid brass which have reliability and long lasting performance. Multi-layer finishing process and heavy solid material make it awesome and have a classic modern style look with exquisite workmanship SUITABLE INSTALLATION SIZE: In order to order a faucet match your sink, please check the parameter carefully. It is suitable for deck thickness less than 1.18inch(30mm). Hole size is fit from 0.98inch(25mm) to 1.41inch(36mm). Quantity:1pc Size:As Shown