Silk cord to wrap Tsuka.
Generally, 10mm cord is appropriate for Katana.
2 Colors
Black/Gold
Gold/Black
Black/Red -- New Color !
3 colors
Dark blue/Blue/Gold brown
Dark blue/Purple/Grayish green
-- Recomended items to be bought together --
Kujiri (Tsukamaki Pick)
https://www.namikawa-ltd.com/product/2423
Japanese Paper WASHI for Hishigami
http://www.namikawa-ltd.com/product/1478
Japanese Paper WASHI for Hishigami 10 sheets
http://www.namikawa-ltd.com/product/1477
Mitani Shuji - Tsukamaki - (DVD)
http://www.namikawa-ltd.com/product/772
