Coats 20wt Cotton Hand Quilting Thread. It is 100 Mercerized Egyptian Long Staple Cotton. This thread is for traditional HAND quilters who prefer sewing with 100 cotton. Special Glace finish provides abrasion resistance and prevents tangling and knotting. Available in a range of 13 colors. 3 spools per box. 350 yards per spool, 240 spools per case. Hand Needle Size 7, 8, 9 or 10.