18" Diameter Round Plastic Lazy Susan Set with Chrome Hubs. Includes 3 shelves and 1 mounting pole. Mounting hardware and instructions included. Lazy susan shelf is made from High Impact Polystyrene with smooth tray surface and has 9/16" inside rim height and 1 7/16" overall height. Stainless steel pole and chrome metal hubs adjustable for cabinets with 34" 42" interior heights.