With touchless operation this trashcan helps prevent contamination by opening automatically when your hand comes within 6" of the infrared sensor then closing after 3 secs., It has open and close buttons too if you ever want to use it manually; also features an onoff switch, A retainer ring secures the 18gal. bag inside the can bags not included, Made of stainless steel; uses 4 D batteries not included, 26.57Hx17.72" dia.