Yori-Ito Silk is a two-ply highly twisted yarn made for karakumi braids. It is also a wonderful yarn to use on other Japanese braiding equipment and for bobbin lace, knitting, and weaving techniques.
The silk is sold in skeins.
Each skein is .5oz/142.7gr, which is 65yds/59.4m.
No color card yet, check back in a few weeks.