Included: (3) Shelf Wood D-Shaped set with telescoping post and mounting hardware Independently rotating injection molded polymer hub included Top 2 shelves are adjustable once installed Laminated Hardwood rim with 5/8" thick shelf bottom Adjustable post will accommodate a 38" to 46" interior cabinet height Designed for Corner Wall Cabinets Construction: Fully Assembled Maple Wood construction with a clear coat finish for durability Cabinet Floor Mounted Do your diagonal wall cabinets need a storage makeover? The Rev-A-Shelf Banded Wood d-shape lazy susans are here to answer the call. The single, double and triple shelf options are designed to sit flush with your cabinet door, are available in 18" and 20" diameters, and come with either a steel bottom mount bearing or telescoping Twist-n-Lock chrome posts with almond hubs. The 5/8" thick shelves rotate independently of each other for effortless access.