Alcove 71" 8-Tier Bookshelf Display Stand with Convertible Two-Tower DesignThe Alcove bookshelf stretches 71 inches up the wall with eight open tiers of storage and six adjustable shelves, then comes apart into two 35 inch towers when the room needs a different layout. A slim 11. 8 inch depth keeps the footprint narrow, making it easy to slip into living rooms, bedrooms, or home office walls.