Double entendre design: Adds a playful and meaningful touch to creative projects
Color-shifting blue-black ink: Creates unique visual effects depending on the paper type
Premium sumi ink quality: Ensures smooth application and rich blackness
Artistic pattern: Enhances the aesthetic appeal of each bottle
Oxtraordinary = Ox + Extraordinary: A double entendre is used to express the strength of the ox and its "extraordinary" qualities. The blue-black ink changes color depending on the type of paper, symbolizing transformation and creativity.
