The Katana is the first model in the Japan line, its stem shaped after a Japanese sword. Assembled stem height is 785 mm, inner diameter is 11 mm, and the minimum base depth required is 250 mm. The stem, mouthpiece, plate, plate washer, diffuser, and connectors are made of AISI 304 stainless steel, with an engineering-polymer base. The model fully disassembles. The kit includes the assembled stem, plate, steel mouthpiece, diffuser, seals, and a silicone hose; the glass base and tobacco bowl are not included.