A hydraulic brake device for a vehicle includes an auxiliary piston having an effective cross-sectional area larger than that of a master piston, and a pressure transmitting chamber provided between the large diameter portion and the master piston. A biomass-derived diesel fuel is also taught having sulphur content below 10 ppm, a cetane-value of at least 70, a cloud point below 0\xb0 C. On receipt of an input XPS document, the hot folder manager consults the handover settings, reads values of specified items from the internal print settings recorded in a print ticket of the XPS document, and merges the specified items with external print settings stored in the PT data 217 or the JDF data 218. The spinal implant is then rotated to a second operational configuration wherein the second transverse dimension extends along the height of the intervertebral space. 98 as calculated by 13C-NMR and an intrinsic viscosity of 0. There is also provided a fabric wrap kit for attachment to the blind slats of an existing vertical blind, so that an existing blind can be retrofitted with a fabric wrap panel.