The large ovoid storage jar, a characteristic for in the Palestinian ceramic tradition, changes gradually over the centuries. Earliest forms in Middle Bronze IIA lack handles. Large two or four vertical handles become common in Middle Bronze II B-C. In the Late Bronze Age, the storage jard changes slightly to meet the commercial needs of the Levant. Some develop a button-base and the shoulder area collapses inward to allow easier stacking of the containers one on top of another. This style of storage jard appears in many tombs in Egypt and the Aegean. In the Iron Age, the jar looses its sleak look for a more globular style characteristic of pottery of this period.