This is a hand-sewing thread for leathercraft made of polyester leather. It is made by braiding 9 fine threads and is pre-waxed for good penetration, is not sticky, and has good slip, so it can be used as is. It can be heat-sealed. It is glossy, highly durable, and does not fuzz. A set of 0.4mm hand-sewing thread, color numbers #26 and #39. About 30cm of each has been used. I think it's a thread with good color, but I'm selling it because the thickness of the thread doesn't match what I want to make. Thickness: 0.4mm 1 spool: 80m Twist direction: Z-twist Thank you for looking.