Abstract: A component of a vehicle occupant restraint system, the vehicle occupant restraint system having a webbing with a lap belt portion and a shoulder belt portion contiguous with the lap belt portion, the component including a web engaging device adapted to toggle between an open and an engaged condition, wherein in the open condition the webbing is moveable relative to the web engaging device in two directions along the webbing, wherein in the engaged condition the webbing is moveable relative to the web engaging device in only one direction along the webbing, and wherein the web engaging device is lockable in the open condition. A vehicle occupant restraint system including a webbing with lap and shoulder belt portions, a component having a web engaging device adapted to toggle between an open and an engaged condition, and a tensioner configured to respond to at least one of the open and engaged conditions.