Unlike swords, spears have the advantage of reach, being considerably longer than other weapon types. Spears usually were used in tightly ordered formations, such as the shieldwall or the schiltron. To resist cavalry, spear shafts could be planted against the ground. Historically, schiltrons could also be drawn in a circle to deter charging cavalry. This tactic is sometimes known as the "crown" formation.
-- From Wikipedia
This Fire and Steel spear is 1095 high carbon steel. 242cm. Comes in 2 pieces and is assembled by screwing together the shaft section.