Two people are needed to assemble this furniture. Different wall materials require different types of fasteners. Use fasteners suitable for the walls in your home. Hardware for wall mounting included. This furniture must be secured to the wall with the enclosed wall anchoring device. May be completed with KALLAX insert, sold separately.
Rail with 2 casters: Wipe clean using a damp cloth and a mild cleaner.
http://www.ikea.com/us/en/images/products/kallax-shelf-unit-on-casters__0480285_PE618855_S4.JPGKALLAX Shelf unit on casters, high-gloss gray-turquoisehttp://www.ikea.com/us/en/catalog/products/S09197403/091.974.03IKEA$79.99