Rectangular 5.5 in. x 21.5 in. x 23.75 in. Gray Wood and Iron Floating 3-Tier Decorative Wall Shelf 11161 - The Home Depot
Baker Furniture Attributed Mid-Century Modern 5-Tier Bamboo and Rattan Bookshelf at 1stDibs
Amazon.com: Peter's Goods Modern Floating Shelves with Rail - Wall Mounted Bathroom Wall Shelves with Towel Bar - Also Perfect for Bedroom Decor and Kitchen Storage - Solid Paulownia Wood Shelf Set