The word Uroko means scales in Japanese. It may represent scales of dragons, snakes or even fish.
It is used as a protective charm, and ward off evil. However, it is also seen in theater on villains as the scales of a snake.
The Uroko pattern is composed of either a succession of triangles of different colors or lozenges divided into two colors, depending on the way you look at it.
A very old Japanese pattern that protects and brings good luck