Conceived as an homage to the ancient Japanese martial arts of Karate and Jūjutsu, this special limited edition glass, hand blown and hand engraved, displays moves and tools - such as the nunchaku - used to practice these martial arts. Made in one of Tokyo's last glass factory, once a light bulbs factory, this thin drinking glass adopts the same traditional techniques used to produce the "Usuhari" glasses. Each and every glass passes through several phases and is manually crafted and refined, through an amazing process that guarantees the best quality achievable.