All 42 of the original Sulky 12 Wt. Cotton Blendables thread colors on 300 yd. spools. Sulky Cotton Blendables thread are the only multicolor threads that 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! This is a great package for the avid hand embroiderer, appliqué enthusiast, and hand quilter, ensuring you will always find your perfect blend. These 42 colors come in a Universal Slimline Box, which is the perfect storage system for all of your threads.