Automatic Auto Touch-Free Touchless Sensor Faucet Adapter Kitchen Water Saver Condition: 100% Brand new; Color: Chrome Material: ABS Plastic with Chrome Finish; Fits: 22mm or 24mm male or female thread Water Pressure: 0.05 ~ 0.6MPa; Battery Applied: 4 x AAA Battery (#7); Measurement: 3 1/2"(L) x 2 3/4"(W) x 2 3/4"(H) Set the water temperature and flow and leave it on; this device will do the rest; Override on/off switch lets you turn on or off manual Easy to install and use; Simply run your hands under the faucet and the water comes on automatically Water will stay on until you move from the sensor; Helps prevent transfer germs and viruses Fits most faucets Does not fit rectangular faucets, short spouts, pull out faucets, shower heads