Mozaik Storage has a minimalistic steel frame with a fixed shelf at the top and bottom, central shelves in the high units can be removed to store taller items. The low level unit can also be used as a coffee table with an under shelf. Shelves are made of MDF with a laminate top in matt white or black. Sizes include - 860mm x 860mm x 395mm high (2 shelves) 430mm x 430mm x 595mm high (2 shelves) 430mm x 4300mm x 1175mm high (4 shelves) 430mm x 860mm x 595mm high (2 shelves)