Iaito Minosaka Yagyu Koshirae sus_prod The Sashiko Check pattern is

The Sashiko Check pattern is woven with both a black and a white thread

or Tombo in Japanese is also called "Kachi Muchi"

Japanese people are fond of the concept of implementing a part of randomness within the purchase of a product

When the Menuki is partially removed

Iaito Minosaka Yagyu Koshirae sus_prod The Sashiko Check pattern isThe Yagyu Koshirae is an High End Iaito fully order made in Japan, made with a sandcasted bubble free zinc aluminum alloy blade. This model has a "standard" blade for an average weight that results in a classic Iaito balance centered toward the Tsuba, and should be suitable for all practitioners. It is an excellent iaito for beginners and intermediate alike who have enough budget to acquire a weapon of higher quality that allows some customization.