You will be dazzled and amazed at the intriguing results you will get with Sulky 30 Wt. Cotton Blendables thread. These exciting, multicolor threads are a masterful blend of different colors within the same range of tone and intensity, with random, subtle color changes every 2-1/2 to 5 inches! No other thread does this! Our 30 Wt. Cotton thread is 1/3 thicker than your standard 40 Wt. quilting cotton. This allows your quilting or appliqu? to stand out from the crowd! All Sulky Cotton Threads are premier quality, long staple, highly mercerized Egyptian cotton with a matte finish to create a soft, warm, natural look and feel.