“Irokise glass” refers to a technique in Edo glassmaking where colored glass is layered over clear glass, and patterns such as kiriko are carved into the surface. The layering of clear and colored glass creates a unique color and brilliance, which is one of the charms of Edo kiriko. Features of Irokise Glass: Layering colored glass over clear glass: It has a double structure with colored glass on the outside and clear glass on the inside. Combination with Edo Kiriko: By carving patterns such as kiriko, even more beautiful decorations are created. Brand new. The box is also intact. However, I peeled off one piece of paper to look at it initially. That piece has been rewrapped with a different paper. This is a set of 5 pieces. The weight of one piece is 156g. However, KAMAY Glass has gone bankrupt, making these items valuable now.