The askos (pl. askoi) contained expensive liquids, as indicated by the small size and two main features: its overarching handle or ring handle, and a narrow neck with wide mouth. Ring askoi are a subdivision of this category, and generally had deep bodies with a narrow central tube which ran vertically through the vessel. However, much rarer examples have a wider, doughnut-shaped body. The guttus (pl. gutti) can be considered a sub-type of the askos shape; its low body had a spout positioned on the top of the shoulder and slightly inset. The guttus derives its name from the Latin word gutta, meaning to drop. It is no surprise therefore that these vessels were used to pour very small amounts of liquid from the distinctive spout. The kinds of liquids believed to have required a drop-by-drop pouring technique are oil, honey and perfume.