This is an automatic trash can with a sensor. There are some stains on the trash can itself that cannot be removed. The lid opens automatically when you hold your hand over the sensor, and closes after a 5-second countdown. You can also open it manually by pressing the "open/close" button. The sensor detects movement about 10 cm above the sensor on the trash can. The trash bag can be secured between the body and the lid, so you don't have to worry about the contents of the trash can getting dirty. Batteries are not included, so please prepare them yourself. Thank you for viewing.