Uni Mitsubishi Zento Flow Model 3-Color Ballpoint Pen Refill is a convenient replacement refill designed to keep your compatible Zento Flow multi-colour pen ready for everyday writing.
It delivers smooth, consistent ink flow for neat and comfortable writing, making it suitable for notes, planning, studying, colour-coding, and office work.
Ideal for students, professionals, and stationery enthusiasts, this refill helps extend the useful life of your favourite pen while reducing the need to replace the complete writing instrument.
A practical choice for maintaining reliable Japanese writing performance.
