Made from leftover fabric from a new, reversed Nagajuban (long undergarment). Made of silk, so it has good slip and knots are less likely to loosen. ◆ Black Cherry Blossom and Maple Pattern Length: 158cm, Width: 5.0cm ◆ Olive Green Length: 157cm, Width: 4.8cm When tying an obi, using a regular koshihimo (waist cord) as a temporary cord can be too long and get in the way. However, with the lengths above, I think they will be just right and easy to use. Thank you for looking.