Motion sensor trash can. -ABS plastics and commercial grade stainless steel construction. Capacity: 21.1 Gallons. -Hands free operation lid opens when in range of the sensor and closes automatically seconds later . -Eliminates touching the trash can while throwing away trash. -Ring liner to hold trash bag up and conceal trash bag inside the trash can. -Operates on 4 ''D'' batteries (not included). -Suitable for all ages. -Assembly required. -Manufacturer provides 1 year limited warranty on the mechanism of the lid.