Solid version here.

This is made of Japanese paper (和紙).

From official page:

This medium thread is made from 100% Japanese paper derived from the pulp of coniferous trees. This is dyed using an ethnic-style gradient upon slitting. It has plenty of color emphasis and is perfect for making bags or other accessories while you enjoy the color variation. We’ve also added single colors to extend its practical use.

Stick Needle JP 11〜13
Crochet Needle JP 7/0〜8/0
Gauge 14-15 sts 19-20 rows

Average usage

• Women’s pullover: 160g
• Men’s pullover: 200g