The main characteristic of this Manchuria One-of-a-Kind Hand-Knotted Wool Aubergine Area Rug is the noticeable abrash (color change), a new technique of weaving between 2 color hues, that imparts an antique look. Handwoven in China with a very high knot count and using only the finest wool. With a very high knot count of approximately 240 knots per square inch.