MUJI USA on X: Our Gel Ink Ballpoint Pens are ideal for color coding notes, drawing and labeling diagrams, and writing smoothly across paper. Find them in stores or online. (Photo credit

Muji Gel Ink Ballpoint Pens 0.5mm 2-color set Black-5 Pcs Blue-5Pcs : Office Products

This refill can be used with our normal gel ink pens with cap and the smooth gel ink pens with click mechanism.

Gel Ink Ballpoint Pen 0.5mm - Refill

Smooth Gel Ink Knock Type Ballpoint Pen 0.5mm 10 Pieces Set, Pen Sets

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MUJI Gel Ink Ballpoint Pens 0.38mm 9-colors Pack : Office Products

Muji 0.5mm Retractable Gel Ink Clip Pens new Version

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MUJI Gel Ink Ballpoint Pens [0.5mm] 9-colors Pack : Office Products

MUJI Smooth Gel Ink Pen, Yellow

Muji Clear Ballpoint Gel Pen 0.5mm [10 colors SET] retractable : Office Products