Designed for use in corner wall and base cabinets. Features two 20" diameter dependant rotating polymer trays, both trays turn together. Shelf heights can be moved on the post by locking screws that allow adjustment. Ribbed tray design provides greater strength and stability. Fits cabinets heights from 24" up to 31". Easy installation. Kit includes two trays, telescoping center shaft, top and bottom pivots, and screws.