EASY AND SMOOTH OPERATION: our faucet sprayer head has two functions, the normal stream or spray. The button is easy to ues, justpress it to switch from stream to spray effortlessly and you don't have to hold the button down, the sprayer will stay on the setting you selected.GOOD QUALITY AND LIGHTWEIGHT: nicely constructed of engineering-grade ABS plastic with premium chrome finishing for durability, effectively withstands daily rust and tarnishing, providing everyday convenience for different rinsing/filling purpose.CONNECTION SIZE: our pull down faucet head has MALE connection of 13/16" or 0.8" or 20.5mm outer diameter, NOT 1/2", and the inside diameter is 9/16" or 0.56" or 14.3mm. It FITS with application with FEMALE threads of 13/16" or 0.8" inner diameter, but DOESN'T FIT some models from specific brands. Note that it's ONLY designed for a STANDARD TYPE of pull out hose, please CHECK THE SIZE AND THREAD TYPE before orderingEASY TO INSTALL WITHOUT EXTRA TOOLS: it's very easy to install this kitchen faucet spray nozzle, you just need to unscrew the old one and install the new unit.SLEEK AND FUNCTIONAL REPLACEMENT: utility spray head with clean looking is designed for kitchen pull out faucet. It's a functional replacement for the defective or clogged one that came with the faucet, you don't need to buy the whole set up.