Abstract: A spine assembly (1) for a binder (20, 21, 22) comprises a base portion (2) and a lid portion (6) releasably fixable to the base portion (2), the lid (6) and base (2) portions forming a tubular spine structure when fixed together, and a plurality of elongate loops (13), each loop having two substantially parallel longer sides and two shorter ends (12, 12a), the loops (13) being positionable about the lid portion (6) of the spine so that one of the longer sides extends longitudinally within the tubular spine structure when the lid (6) is fixed to the base and the other longer side extends longitudinally of the spine and adjacent the outer surface of the lid portion (6). A slot (16) may be provided in the lid (6) to allow loops (13, 5) of different sizes (M1, M2, M3) to be simultaneously accommodated in the spine.