High quality The sewing threads are made of high quality material polyeser, featuring high strength, strong resistance to fracture and superior durability. They are also colourfast and washable, all of which give very satisfying results. .Thread type 402The knitting thread type is 402, suitable for most fabrics, e.g. cotton, linen and polyester. These knitting yarns are thinner but have better resistance to breakage, ideal for home or professional use. .Sufficient LengthThe 4 spools are 3000 yards each, total 15000 yards. This is enough length for you to enjoy the fun of sewing. .Widely applicable The sewing kit is suitable for machine sewing, cross-stitch embroidery, crafts, needlework, etc. It is also suitable for projects with thin or thick fabrics such as wool, leather and nylon. Also, the sewing thread can be applied to projects such as cushions, upholstery and other sewing projects. .Beginner and Experienced FriendlyConvenient and user-friendly. Whether you are a beginner or an experienced professional, the sewing kit can be used. .