A boomerang is a thrown tool for hunting, a flat airfoil made of wood, it is designed to spin about on its axis perpendicular to the direction of flight. Assuming this is a returning boomerang, if it misses its target it will circle back to the thrower, making it reusable. With enough force behind it, 2 lbs. of wood can prove an effective weapon, and the requirements to wield it effectively are relatively low.