The blade part is made of D2, the sharpness of the blade is long lasting.
Rose-wood  is a finest wood with dignity.
It gives a sense of stability when used with good texture and weight that sinks in the water.
All blades are the same.
Use the same blade and have the same performance.
Length - Handle - 110mm
                - Blade - 65mm
Width - Blade - 36mm, 30mm, 20mm
Thickness - Blade - 2.5T
 
Precautions for use.
First of all, the blade is extremely sharp.
Use it after checking through the test. Must be used on cutting pad.
Because the blades very sharp, the cutting pad can be cut or pinched If you give too much force.
If you curve in that state, the blade may break.
The correct usage is to work with the appropriate force on the cutting pad.