This hand knotted pile rug is made using 100% natural dyes and handspun wool. This rug comes from our Nooristan collection, one of the most finely woven carpets produced anywhere with all natural dyes and handspun wool. The knotting is approximately 200 knots per square inch. This striking rug has the distinct design favored Mamluk Sultans in a unique blue on blue combination. These unique geometric rugs are equally well suited for contemporary or traditional interiors. FREE Shipping and Easy Returns.