Uni Ball Ultra Micro Ball Pen Blue Ink (0.5mm) - (1Pcs) UB-157

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Specification:

Brand: Uni Ball
Model / Code: UB-157
Ink Colour: Blue
Tip Size: 0.7 mm (fine point) that produces approximately a 0.5 mm line width
Quantity: 1 Pc
Ink Type: Uni Super Ink — pigment-based, water-resistant, fade-resistant, acid-free
Barrel / Material: Plastic barrel with ink-level visible window)
Origin: Japan / Japanese engineering standard

Features:

Provides smooth, consistent ink flow thanks to the “UNI-FLOW” system ensuring uninterrupted writing.
Fine tip allows precise, clean lines — suitable for detailed writing, note-taking, drawing or sketching.
The Uni Super Ink offers archival quality: resistant to water, fading and document fraud (suitable for important work).
Transparent ink window allows users to monitor remaining ink easily.
Blue ink colour variant adds variety for colour-coding, writing tasks and personal preference.

About This Product

The Uni-ball Ultra Micro BallPen (UB-157, Blue Ink) is a premium fine-point writing instrument designed for users seeking precision, reliability and lasting ink performance. With a 0.7 mm tip that delivers about a 0.5 mm line, the pen is ideal for detailed work—whether that’s academic note-taking, professional document annotation or creative sketching.

Thanks to the Uni Super Ink’s pigment-based formulation, writing remains sharp, clear and enduring—even when exposed to moisture or time. The “UNI-FLOW” ink delivery system ensures that each stroke is smooth and uniform until the ink runs out. With its Japanese design and materials, the pen offers a high-quality user experience.

As a single-piece item (1 Pc), this pen is suitable for individuals wanting premium writing instruments in blue ink.