The woomerah is a spear thrower used to increase the force of a spear's projection. Spear throwers are generally elongated in shape and may be engraved with Dreamtime motifs or simply polished. In central and southern Australia, the beaks extend from the body; those from the northern region usually have a perpendicular beak like this one dating from the second half of the 20th century.

At one end is a handle for holding the object. At the other end, the spear rests on a wooden beak-shaped notch, which can sometimes be made from wallaby tibia. The different parts of the woomerah can be fixed together with spinifex resin (desert cactus) or beeswax. 

Symbols are painted on this spear: they correspond to clan motifs, showing both their clan affiliation and representing their clan during religious ceremonies.