Abstract: A web-grabber for use with a safety-belt comprises a housing(5) formed as an extrusion of aluminium. A wedge(13) is located within a central passage(6) within the housing. An additional element(20) is also present within the passage(6) having a first side(21) adapted to abut one of the substantially parallel side walls of the passage(6) and an opposed inclined face(22) along which the wedge(13) may slide. The wedge is adapted to engage wedgingly the webbing(3) of a safety-belt, with a face(14) of the wedge engaging the webbing(3) and pressing it against an opposed element(11) which passes through the passage(6) and which secures the extrusion(5) to a retractor unit(1).