The stone spearheads have a slate texture and in terms of appearance resemble a narrow and long triangle, with the two symmetrical sides of the triangle serving as a “blade.” The blade sides slightly arch outwards and meet in a “sharp point,” the blade sides and sharp point forming the “blade area” of the artifact. The opposite side of the “sharp point” the bladeless “base” is where the wooden handle would be attached
　
　 The spearheads unearthed at the Tamalin Site are mainly of an “full-edged type” whereby the edge line extends all the way to the base, though there are some specimens where the base is clearly narrower than the edge, with a stem or notch at both sides as the area where the spearhead would be tied to a handle. When used stone spearheads do of course need to be fastened to a bamboo or wooden handle. As a large weapon that is thrown or used to pierce the spear was used mainly for hunting, though possibly also at times of conflict or war.