The Hereke carpets are either woven in pure silk or cotton and wool. The pure silk carpet uses silk from Bursa. In wool and cotton carpets the warps and welfts are cotton and the best quality of wool is used d-for knoots in the pile. The silk Hereke carpets has from 1.0 to 1.2 million knots per square meter. The knot density in the highest quality wool carpets is any where between 360,000 to 400,000 knots per square meter. In second quality wool carpets the knots are around 250,000 to 300,000 per square meter. The dominant colours in Hereke carpets are dark blue, cream and cinnamon and occasionally yellow and green are used. The treditional floral designs are common and each design has its own name, such as : Seljuk Star, Seven Mountain Flowers, Ploneise, 101 Flowers, and Tulip. The flowers in the design and the hormany of colours add warth to a home.