KALLAX Shelf unit with doors, black-brown, 303/8x303/8" - IKEA
Amazon.com: PACHIRA E-Commerce US Wooden Cube Storage Organizer, Unit Shelf, Closet Cabinet, Bookshelf File in Living Room, Bedroom, Study 3 Cube, Dark Brown : Home & Kitchen
Janne 9 Cube Multipurpose Storage Shelf Dark Brown - Baxton Studio : Target
11" 3 Cube Organizer Shelf Dark Brown - Room Essentials™ : Target