1 ??GREAT DURABILITY?? 100% Spun Polyester thread 40S_2 (Tex27), owning the strength of polyester with a soft touch and matte look of cotton Compared to other cone thread for sergers, our fray & shrink-free serger machine thread is stronger, with minimal lint, can withstand high-speed sewing & tension, High tensile strength, holds up colors and no shrinking even when subjected to commercial laundering, bleaching and other harsh chemicals,2 ??Wide range of compatibility?? Featured with high tensile strength, our all purpose polyester thread can work smoothly and compatible with Brother, Babylock, Janome, Singer, Pfaff, Juki, Use for Serger, Over lock, Merrow, single needle etc The sewing thread can be used for a variety of sewing machines or embroidery machines which with automatic winding function The thread set to keep your sewing project simple, practical and user-friendly, whether youre a professional or a beginner It could fulfill most of your home use project needs,3 ??Easy to use and convenient to store?? Black thread for sewing machine lays flat and goes through loopers & needles without friction & yields clean lines Each white thread for sewing machine with a pouch to prevent dust and other dirt from getting on it when storing it for everyday use Well suited machine & hand sewing, basting, hemming, piecing, decorative stitching, embroidery, garment making, upholstery, seaming, & overlockingSizeC,SizeD,SizeA,SizeB