Efficient Cleaning: The basin is made of integral aluminum alloy die-casting, with a smooth surface and no gaps. The flushing head is made of stainless steel and ABS plastic, designed to complement your kitchen environment. Material: The basin is constructed from a single piece of aluminum alloy through compression molding, ensuring a seamless and smooth surface. The high-pressure rinser head is made of stainless steel and ABS plastic. Function: When only one hand is available, cleaning milk and formula residue from narrow baby bottles can be challenging. This glass rinser quickly removes residue with a simple push. It is ideal for rinsing barware, champagne flutes, and wine glasses. The design features a subtle overhang that directs water flow into the sink for easy cleanup. It is gentle on delicate drinkware and serves as a convenient kitchen tool. Installation: Requires at least 2 inches of clearance around the installation hole and no more than 2.25 inches from the center of the hole to the sink's edge to ensure proper water drainage into the sink. Includes a water supply line compatible with both hot and cold water connections. Simple to Handle: The faucet glass washer is easy to operate. Simply place the cup upside down and gently press the bottom to activate water pressure for cleaning. Remove the cup once cleaning is complete.