The tile knob is named for its shape. Until the end of the Wei Dynasty (225 CE) both nose and tile knobs were called nose knobs. Tile knobs have a larger hole than nose knobs. Tile knobs with a wider hole are known as Bridge knobs.
- Pinyin: wă niŭ
The tile knob is named for its shape. Until the end of the Wei Dynasty (225 CE) both nose and tile knobs were called nose knobs. Tile knobs have a larger hole than nose knobs. Tile knobs with a wider hole are known as Bridge knobs.