Non-breakable Transfil is very easy to work with. Use Transfil on leather goods, curtains, labels, quilts and serging. Also for craft projects, Transfil is a reliable partner. It is semi-transparent 100% nylon monofilament. Use needle sizes 80-90.Color: WhiteRecommended Needle Size: 80/12 and 90/14Made of: Nylon MonofilamentRecommended Use: Machine Embroidery, Machine Piecing, Machine Applique, Domestic Machine Quilting, and Long Arm QuiltingThread Weight: 0.00055 optical diameterLength: 1094yds