Size: about 0.1mm in diameter, about 50 yards / 46m each roll, 2 rolls, 100 yards / 92m totally. You can randomly cut them into the length you want, long enough to meet your various needs, the thread is super strong, yet very thin to stay hidden in between beads. Jewelry Thread: Made of nylon material, the thread is super strong, yet very thin to stay hidden in between beads. The thread is smooth and easily threads through beads without fraying. Especially fit for using with seed beads, gemstone beads, and other beads for jewelry making. Beading String: The craft string can match with seed beads, glass beads, pearl beads, metal beads, ear hooks and other accessory to DIY unique jewelry. Add a touch of fun to your crafting. The thread is smooth and easily threads through beads without fraying. Wide Application: The nylon cord can be used for wrapping, weaving, knitting, and jewelry making. They're perfect accessories for balloon garlands, hanging decorations, hair accessories, gift wrapping, clothing decoration, etc. Thread for Sewing: The thread is also perfect for weaving, knotting, macrame, leather sewing. Sew tough material such as leather, denim, canvas, or thick fabric; Repair shoes, coats, jeans etc.