Flat -perforated-round stones made of natural flat pebbles are predominant, especially in the 2nd and 3rd Phases; Standardization in their size (5-6 cm in diameter) both at Sumaki and in the other settlements shows their specialised function. Chipped disc and grooved stones, typical tools of the Early Pottery Neolithic, are very rare. A few pieces of bowls of various colared stones have been found mainly in the fills of the 2nd and 3rd Phases. There is half of a Special-pestle-with-articulated-handles with smoothed or abraded projections, one of the Pre-Pottery Neolithic cultural elements; however, as it has been found in slope wash, it is as yet unclear whether it was carried here by chance, or whether it belongs to Ievels that have not been excavated yet. 