DONG-A U-KNOCK Retractable Ballpoint Pen 0.5mm | Black, Blue, Red | World's First U-Spring Tip | Permanent Ink | Made in Korea

Experience a world-class breakthrough in writing technology. DONG-A U-KNOCK is the world’s first ballpoint pen to feature a U-Spring tip, delivering unparalleled smoothness and long-lasting records.

The DONG-A U-KNOCK is a masterpiece of stationery engineering. It features the innovative U-Spring mechanism that cushions the writing pressure, providing a silk-smooth touch that feels like gliding on air. Equipped with high-quality permanent ink, your notes will remain vivid and fade-resistant for years, making it ideal for important documents and archives. The clear crystal body allows for instant ink monitoring, and its reliable retractable design ensures it's always ready for action. Proudly made in Korea, U-KNOCK sets a new standard for performance and durability.

- World's First U-Spring Technology: The patented U-shaped spring tip minimizes friction and provides an exceptionally soft writing feel.
- Archive-Quality Permanent Ink: Formulated with fade-resistant ink that preserves your writing for a long time without discoloring.
- Vivid 0.5mm Precision: Delivers clean, sharp lines perfect for detailed notes, forms, and daily professional use.
- Transparent Crystal Body: Functional clear barrel design allows you to check ink levels at a glance.
- Reliable Retractable Mechanism: High-quality knock system designed for durability and easy one-handed operation.

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