"Bannou" Japanese popular type knife

 
Material: White steel "Warikomi"
Full lengh: About 15cm
Blade lengh: About 6.5cm
Blade thickness: About 2.5mm 
 

Carved "Higonokami"

"Warikomi" Sandwich

 
 Higonokai is a double-edged V-shaped, you can use either side, regardless of dominant hand.
  Illustration Higonokami