These peculiar vessels belong to a class of pottery known as Red-Polished Ware, which includes mainly large jugs with two or more necks joined by horizontal bars, as well as amphora-shaped and kalathos shaped vases, conical bowls and large flasks. As a rule, the surfaces are coated with red-brownish paint and are well burnished. The incised decoration, in various imaginative combinations of rectilinear and curvilinear motifs, is picked out in white (with the use of kaolin). The functional significance of two-necked jugs is unclear but since most of them have come from graves, it is possible that they were intended exclusively for religious and ritual use.