What makes the ito wrapping on a tsuka a quality indicator?
Updated Feb 2026
Ito is the cord wrapped over the tsuka (handle) of a katana, typically in a diamond or hineri-maki pattern that creates a secure, aesthetically refined surface. Quality ito wrapping is a meaningful differentiator between collectible-grade and lower-tier pieces. On better pieces, the ito is wrapped over authentic or synthetic samegawa — a textured ray skin underlayer that prevents slipping and adds structural rigidity. The spacing between diamonds should be consistent, the knot placement clean, and the tension even throughout. Cotton ito holds color more faithfully over time than synthetic alternatives and tends to develop a natural patina. In the black and blue collection specifically, deep cobalt ito against a dark samegawa or black lacquered tsuka core creates the layered dual-tone depth that defines the aesthetic. When evaluating a piece, check whether the ito is glued flat or truly wrapped under tension — the latter is the mark of proper, lasting construction.