The straight shafts of spears could be constructed from any rigid material, but are typically made of wood. Their piercing tips could be formed by just sharpening the shaft to a point or by attaching a variety of spearheads made from metal (usually iron, bronze, or steel), stone (such as flint or obsidian), rock crystal, ivory, and even coral.
The length of a spear varies from 5 to 13 feet (1.5 to 4 meters) or more, though typically their length was in a range of 6 to 8 feet (1.8 to 2.4 meters). Roughly the size of a quarterstaff, but slightly smaller in diameter