The furniture of each piece in the Great Wave Set displays the renowned Tomoe motif used frequenly for family crests and shrine decoration. The tsuba, fuchi, & kashira are made of blackened iron and feature the Tomoe crest (mon). The blades are hand-forged from T10 high-carbon steel and are differentially hardened using traditional claying methods. The temper line (hamon) is evident and prominent. Each piece has a deeply lacquered black saya with a one-piece brass habaki construction. Real ray skin (same) is used on the tsuka, and the tsuka-ito and sageo are made of premium woven Japanese black cotton. The handle on the tanto is an attractive ribbed buffalo horn.