Our unique adjustable rigid shelf closet system helps you organize your closet space quickly and efficiently. The 4 Shelf Organizer comes with 3 removable shelves. Adjust the height to match your needs. The rigid shelf construction ensures no sagging. Shelf units can be combined and connected by placing the double hanging bar (sold separately) through the side grommets. No tools are required for installation. Expand your new closet in stages as your needs expand. It can move with you if and when you do!