This product is a motion sensor trash can. Need to install 4 AA batteries(not included). When an object approaches the trash can, hands-free operation lid opens within moment when in range of the sensor, and the lid will automatically close after staying for 5 seconds(Closure process indicated by countdown beam). This top lid uses our independently developed slow landing technology. The lid closes with hardly any sound, if the person next to you is taking a nap, there is no need to worry about disturbing them with this bin. High quality all stainless-steel thickened trash can body by 0.45MM stainless steel material production. Compared to most 0.3MM materials trash can on the market, our stainless steel trash can are less prone to deformation and are stronger in use! 17''L×11''W×24.76''H, 13.2 gallon/50 liter. The huge capacity definitely meets your daily use. It can be a good helper for your kitchen and make your room clean and tidy. The sophisticated rectangular appearance also makes it suitable for a variety of occasions. It makes a shining impression from the outside.