Sulky Blendables Cotton Thread 2-ply 30wt 400d 500yds Fall HolidayThese exciting new 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 thread has ever done that before. They will add excitement to your quilting and everything else you do. They’re made of the highest quality, long-staple, 100% Egyptian Cotton.Machine or Hand QuiltingComputerized RedworkMachine Embroidery and MonogrammingCounted Cross StitchAll Purpose SewingLong Arm QuiltingAnd much moreRecommended needle size: 90/14 quilting or topstitch