Centers feature an array of use specific openings. Curved top prevents placement of objects on top of receptacles. Items come with a plastic liner except for item 090501 comes with a galvanized liner. Flat top items and custom disposal openings are available. Lift off tops provide easy access to galvanized steel or leak proof rigid plastic liners. All fiberglass containers listed are available in over 31 standard colors and finishes. Please call for options. Holds 16 gallons.