If your kitchen cabinet is spinning out of control, the Rev-a-Shelf 18'' Full-Circle Two-Shelf Lazy Susan is here to save the day. Revered as one of the best in the industry, the Rev-a-Shelf Polymer full-circle wall susans with single, double and triple shelf options are available in 16"", 18"" and 20"" diameters. Ideal for maximizing corner cabinet space, our lazy Susans come with a durable chrome post and hubs. The smooth polystyrene shelves can be purchased with dependent or independent hardware based on your preference to turn the shelves together or separately. This home-storage innovation is designed to elevate your kitchen organization with ease and efficiency. All 2 and 3 Shelf Lazy Susans for a Wall or Base corner cabinets must first be assembled inside of the cabinet, before final installation. Double check your cabinet's opening to allow the best fit. Measure side to side, front to back, and top to bottom. Double check to make sure your product is within measurements and don't forget to take into account any obstructions.