If your kitchen cabinet is spinning out of control, the Rev-a-Shelf 18'' Polymer Full-Circle 2-Shelf Lazy Susan is here to save the day.Whether you are replacing an old unit or just adding a corner cabinet lazy susan to your lower or corner base cabinet, you will not be disappointed with the exceptional design and the durable rotating hardware that makes installation simple. This 2-shelf system is made of double-wall polymer and sturdy rib construction for unmatched durability.