Zebra bLen U Ink Refill SY - Premium Replacement Ink Cartridge for Smooth Writing | Ideal for Office, School & Home Use

Maintain the smooth, dark lines of your Zebra bLen U ballpoint pen with the SY Oil-Based Ink Refill. Designed for effortless writing, this refill ensures consistent ink flow and reduced writing resistance thanks to its thick, low-friction S oil-based ink.

Key Features

• S Oil-Based Ink: Delivers rich, dark lines with minimal pressure, enhancing readability and reducing hand fatigue.
• Reduced Friction: A lower coefficient of friction minimizes writing resistance for smoother strokes.
• Compatibility: Compatible with the series pens, ensuring a perfect fit and optimal performance.
  

Specifications