Plastic Cover Whitmor’s Clip & Cube Organizers are storage systems designed to evolve to create multiple configurations as your needs change Includes ABS plastic clips to secure cubes together Create multiple configurations Set includes: 2-Cubes 11 x 12.17 x 12.17 inches, 1-Small Rectangle 11 x 12.17 x 5.83 inches, 1-Medium Rectangle 11 x 12.17 x 18.5 inches, 1-Large Rectangle 11 x 12.17 x 24. Inches Storage Bins sold separately