The Kalita Wave Dripper is a pour-over coffee brewer from Japan with a flat bottom design. The flat bottom design is for a more even extraction.
It comes in two sizes: #155 and #185. The #155 is smaller and is ideal for a single cup brewer. The #185 is slightly larger. The Kalita Wave Dripper comes in glass or stainless steel. The #185 also comes in ceramic.