A kilim rug is a type of woven handicraft whose surface is smooth and lint-free, made of warp and weft, and does not have long pile layers like a rug. The carpet, also called Plus because of its nature: if the thread is thinner and softer, we get a higher quality carpet. For this reason, wool from the armpits and necks of sheep is used for weaving to improve the quality of the work.

Flexibility, durability and dyeability are properties of sheep's wool for carpet making, and sheep's wool is more easily conditioned for carpet weaving. Carpet weaving is one of the women's arts and takes place mainly in rural and nomadic areas of Iran.