---
product_id: 534780401
title: "Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue)"
brand: "dong-a"
price: "€ 49.95"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/534780401-dong-a-u-knock-gel-ink-ballpoint-pen-u-spring
store_origin: ES
region: Spain
---

# Patented U-Spring tech for ultra-smooth glide Retractable design for on-the-go convenience 0.5mm precision ballpoint tip for crisp lines Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue)

**Brand:** dong-a
**Price:** € 49.95
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your writing game with the pen that’s as sharp as your ideas!

## Quick Answers

- **What is this?** Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue) by dong-a
- **How much does it cost?** € 49.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/534780401-dong-a-u-knock-gel-ink-ballpoint-pen-u-spring)

## Best For

- dong-a enthusiasts

## Why This Product

- Trusted dong-a brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Up Your Desk:** One dozen pens per pack means you’re always stocked, whether at the office or working remotely.
- • **Ready When You Are:** Retractable mechanism keeps your pen protected and instantly accessible—no cap, no hassle.
- • **Vibrant Ink Choices:** Available in Black, Blue, Red, or a trendy assorted pack to match your mood and style.
- • **Precision Meets Style:** 0.5mm fine tip ensures sharp, clean lines perfect for professional notes and creative ideas alike.
- • **Glide Like Never Before:** Experience the world’s first U-Spring technology delivering uninterrupted, silky-smooth writing every time.

## Overview

The Dong-A U-Knock Gel Ink Ballpoint Pen features patented U-Spring technology for an ultra-smooth, uninterrupted writing experience. With a precise 0.5mm ball tip and retractable design, it combines functionality and style in Black, Blue, Red, or assorted colors. Sold in convenient packs of 12, it’s the perfect pen for professionals who demand reliability and flair.

## Description

It's world's first patented U-Spring technology realizes satisfyingly smooth writing performance without any interruption Patented U-spring technology Ultra smooth performance gel ink Satisfying smooth writhing performance Retractable Colors: Black, Red, Blue, Assorted (3 colors, 12 pens)

## Features

- It's world's first patented U-Spring technology realizes satisfyingly smooth writing performance without any interruption
- Patented U-spring technology, Retractable
- Ultra smooth performance gel ink, Satisfying smooth writhing performance
- Colors: Black, Red, Blue, Assorted (3 colors, 12 pens)
- Capacity : 1 Dozen (12pens)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dong-A |
| Brand | Dong-A |
| Item Weight | 5 ounces |
| Package Dimensions | 6.02 x 3.03 x 1.1 inches |
| Item model number | 8802203017319 |
| Color | Blue |
| Closure | Retractable |
| Pencil Lead Degree (Hardness) | HB |
| Material Type | gel |
| Point Type | Ball Tip |
| Line Size | 0.5 Millimeters |
| Ink Color | Black,Blue,Red |
| Manufacturer Part Number | 8802203017319 |

## Product Details

- **Brand:** Dong-A
- **Writing Instrument Form:** Ballpoint Pen
- **Color:** Blue
- **Ink Color:** Black,Blue,Red
- **Age Range (Description):** Adult

## Images

![Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue) - Image 1](https://m.media-amazon.com/images/I/71kSIUVZ2vL.jpg)
![Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue) - Image 2](https://m.media-amazon.com/images/I/71IMYjaDndL.jpg)
![Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue) - Image 3](https://m.media-amazon.com/images/I/61GDsJFKiJL.jpg)

## Frequently Bought Together

- Dong-A U-Knock Gel Ink Ballpoint Pen U-Spring Technology 0.5mm (1 Dozen) Smooth Writing (Blue)
- Pilot Hi-tec-c Coleto 5 Color Multi Pen Body Component, Basic & Pearl Pattern, Rubber grip, 4-pack, Sticky Notes Value Set, Pen Body Only (No Refill Included)
- Pilot, Precise V5 RT Refillable & Retractable Rolling Ball Pens, Extra Fine Point 0.5 mm, Assorted Colors, Pack of 12

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**Shop now:** [https://www.desertcart.es/products/534780401-dong-a-u-knock-gel-ink-ballpoint-pen-u-spring](https://www.desertcart.es/products/534780401-dong-a-u-knock-gel-ink-ballpoint-pen-u-spring)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-24*