Uni-ball Zento Ballpoint Pen Refill - 0.5mm / 0.38mm, Black, Blue and Red (for Multi-Pen)

Uni-ball Zento Multi-Pen Refill (0.5 / 0.38mm, Black, Blue and Red) Keep your Uni-ball Zento pen writing at its best with these six refills. These are ideal for precise notes, detailed writing, planners, forms, and everyday office use, while the smooth ink flow helps deliver clean, consistent lines with minimal skipping. Key Features Saturated and smooth water-based refills for professional everyday writing. 0.38mm extra-fine tip for neat, precise lines; 0.5mm for bolder writing. Designed for compatible Uni-ball Zento pens (see the list below). Great for journaling, note-taking, annotations, and compact writing spaces. Unique water-based ZENTO Ink ZENTO ink is uniquely formulated to deliver a soft, stress-free writing experience with clean, controlled lines. Its cushioning POA (Polyoxyalkylene) surfactant helps reduce friction between the ballpoint tip and paper, while special cohesive particles help suppress ink spread, feathering, and bleed-through. The result is a smooth glide that feels gentle on the page while keeping handwriting crisp and easy to read. Refills The pen uses the following compatible ZENTO Ballpont Refills specifically for ZENTO multi-pens: Product Code Product Name UBR-ZML-38K Uni-ball Zento Ballpoint Pen Refill, Black 0.38mm UBR-ZML-38B Uni-ball Zento Ballpoint Pen Refill, Blue 0.38mm UBR-ZML-38R Uni-ball Zento Ballpoint Pen Refill, Red 0.38mm UBR-ZML-05K Uni-ball Zento Ballpoint Pen Refill, Black 0.5mm UBR-ZML-05B Uni-ball Zento Ballpoint Pen Refill, Blue 0.5mm UBR-ZML-05R Uni-ball Zento Ballpoint Pen Refill, Red 0.5mm These Zento refills are suitable for the following Uni-Pen Model: Product Code Product Name UBE3-ZHR Uni-ball Zento Signature 3-Color Ballpoint Pen UBE3-ZF Uni-ball Zento Flow 3-Color Ballpoint Pen UBE3-ZSC Uni-ball Zento 3-Color Ballpoint Pen (Standard)