This product features:
- ZENTO Ink Technology: Uses a specially formulated water-based ink blended with POA surfactant, which acts as a “cushion” to reduce writing friction by approximately 40%.
- Clean & Quick-Drying Lines: Delivers solid, consistent color with significantly reduced smearing, clumping, or bleed-through compared to traditional inks.
- Comfortable Grip: Equipped with a smooth, soft grip designed to minimize hand fatigue during long writing sessions.








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