Material: high quality 100% polyester sewing thread, very thick and durable, 39 different colors (160 yards), including silver and gold threads (120 yards), all colors are bright and vibrant without duplicates. Easy to use and store: with a box, it is convenient to store and avoid spool chaos. Each spool is individually protected. Perfect for hand or machine use, and easy to handle, don't worry about threading. 39 different colors, all colors are bright and vibrant, enough for your daily life, ideal for beginners or professionals, for all home and personal use. Wide range of applications: suitable for sewing hard fabrics such as jeans, leather clothing, bed sheet lining, hand sewing, machine sewing, cross stitch, embroidery, knitting, weaving and more. Good gift: 39 vibrant colored thread spools included, each color per spool, perfect gift for your friends, family and everyone who loves DIY.