Kilims are flat (pileless), unknotted hand woven textiles used as floor and wall coverings. Kilim, a word of Turkish origin, is often applied in common usage both in Turkey and the world to all flat woven (pileless) rugs, but actually it denotes only those flat woven rugs which are made by a technique peculiar to kilims. Usually the warp (the length of kilim) is made of wool, and the weft (the width of kilim) of wool or cotton. The colored threads are completely woven into the kilim like a basket, making it reversible. Although the face may be distinguished from the reverse, the difference is so slight that either side may be used.