Anatolian (Turkish) rugs generally come in smaller sizes with the exception of Ushak rugs, which can be as large as 25 feet by 50 feet. The majority of Anatolian rugs are prayer rugs with very distinct designs. Anatolian runners are also common. Most Anatolian rugs with the exception of Hereke and Ushak seem to be geometric and very much influenced by Caucasian designs. The two sub-styles mentioned above tend to be more curvilinear and have been influenced by curvilinear Persian styles such as Kerman. The majority of the Turkish population is Sunni Muslim and because of certain religious beliefs, naturalistic living motifs such as humans or animals, and the sacred color green have not been used in older Anatolian rugs. However, today, both living creatures and the color green can be found in these rugs. Another characteristic of Anatolian rugs is their rich and colorful palette similar to Caucasian rugs.