Estone 12 Spools 400 Yard Polyester All Purpose Sewing Threads Set Black These are very useful, beautiful colors for any Sewing project. This thread is best for Pillow covers, Garments stitching (coats, baby cloths), bed sheets & linings and other stitching art projects. Adds value and increase the life of your garments Great for Quilting, Tapestry, Dress Making, General stitching This thread can be used for both hand and machines The thread is strong and durable Material: polyester