Modular Bookshelf 15 Shelves Color:Black Shag Dot Indoor Outdoor Round Mats Shag Dot Indoor Outdoor Round Mats are made by tufting custom extruded yarns as loops onto a primary backing and then binding them onto a hardworking vinyl that could weather any storm outdoors and provides functionality underfoot indoors Brushed Nickel finishes are only for interior use Such simple features mean that a practical bookshelf can be created or adapted to any home or office space Kartell offers three different standard solutions (without cubes): one version with 15 compartments that can be used as a self supporting room divider or even as a shelf in the middle of a room thanks to the structure's unique solidity