A part of a tripod to help stabilixe the legs by forcing the legs as far apart as possible. Some spreader bar designs include a way to store extra eyepieces.
Stiff bar that is used to separate the rigging of a crane hook that is attached at different places to the large object being lifted. By doing so, the object can be held vertically even when being lifted by a single hook.
A spreader bar is a physical restraint used in bondage play. It is a stiff bar typically two to three feet (sixty to ninety cm) long with attachment points for restraints at each end. They may include extra attachment points along their length for collars, suspension play, or as anchoring points for ropes or chains.