---
product_id: 685212448
title: "Zento Gel Ink Rollerball Pens, 12 Black Medium Point Smooth Writing Pens, Colored Japanese Pens, Zen Colors"
brand: "uni-ball"
price: "€ 29.00"
currency: EUR
in_stock: true
reviews_count: 5
category: "Uni Ball"
url: https://www.desertcart.sk/products/685212448-zento-gel-ink-rollerball-pens-12-black-medium-point-smooth
store_origin: SK
region: Slovakia
---

# Quick-drying gel ink prevents smudges 76% recycled barrel for eco-conscious style 0.7mm medium point for precise, smooth writing Zento Gel Ink Rollerball Pens, 12 Black Medium Point Smooth Writing Pens, Colored Japanese Pens, Zen Colors

**Brand:** uni-ball
**Price:** € 29.00
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write smart, write smooth, write sustainably.

## Quick Answers

- **What is this?** Zento Gel Ink Rollerball Pens, 12 Black Medium Point Smooth Writing Pens, Colored Japanese Pens, Zen Colors by uni-ball
- **How much does it cost?** € 29.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/685212448-zento-gel-ink-rollerball-pens-12-black-medium-point-smooth)

## Best For

- uni-ball enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Precision:** Ultra-smooth 0.7mm gel tip glides with every stroke, making your notes and ideas pop.
- • **Clip & Go Convenience:** Spring-loaded clip secures your pen to pockets or notebooks, so you’re always ready to jot down brilliance.
- • **Smudge-Free Confidence:** Quick-drying ink keeps your work crisp and clean—perfect for fast-paced professionals.
- • **Comfort Meets Minimalism:** Seamless soft grip and minimalist design reduce hand fatigue during marathon writing sessions.
- • **Sustainable Sophistication:** Sleek barrels crafted from 76% recycled materials, blending style with responsibility.

## Overview

The uni-ball Zento Gel Ink Rollerball Pen offers a premium writing experience with a 0.7mm medium tip delivering ultra-smooth, quick-drying black gel ink that resists smudging. Its minimalist barrel, made from 76% recycled plastic, features a comfortable seamless grip and a durable spring-loaded clip for on-the-go convenience. Perfect for professionals seeking a reliable, eco-conscious pen that combines style, comfort, and performance in every stroke.

## Description

Step into a world of timeless elegance and unparalleled craftsmanship with Uniball, a brand that has woven its legacy into the fabric of fine writing instruments. With a heritage rooted in innovation and a commitment to excellence, Uniball has consistently delivered a writing experience that stands the test of time. Immerse yourself in the art of writing with Uniball's meticulously crafted pens, proudly made in Japan. Our legacy of precision and quality is evident in every stroke, ensuring that your thoughts flow seamlessly onto paper with each movement of the pen. From Gel Pens to Rollerball Pens, Ballpoint Pens to Fineliner Pens, and Mechanical Pencils, Uniball offers a comprehensive range that caters to every writing style and preference. Dive into a world of versatility with Uniball's diverse range of tip sizes, spanning from the ultra-micro 0.38 for intricate detailing, to the bold 1.0 for striking emphasis. Whether you're sketching, journaling, note-taking, or bringing ideas to life, Uniball empowers you to effortlessly transition between strokes, giving your writing a unique dimension that captivates the eye and stirs the soul. As you hold a Uniball pen in your hand, you're not just embracing a writing instrument – you're embracing a legacy of craftsmanship, innovation, and the pursuit of perfection. Each pen is a testament to our dedication to providing you with an unmatched writing experience, where every word is an ode to the art of communication. Start your story with Uniball, where heritage meets modernity, and each stroke is an invitation to immerse yourself in a world of boundless expression. Join a community of discerning individuals who appreciate the value of quality, heritage, and the power of the written word. Experience the magic of Uniball for yourself and discover the joy of writing that transcends time and leaves an indelible mark on every page.

Review: LDR: Super-smooth, quick-drying black gel ink in an aesthetically pleasing, comfortable, and environmentally conscious barrel. A top-tier choice for effortless, smudge-free writing. I recently purchased the 12-pack of Uniball Zento Gel Ink Rollerball Pens because I was in the market for a reliable, super-smooth pen for long-form note-taking and journaling. My initial impression was excellent: the sleek, minimalist design is immediately appealing, and the moment I put the pen to paper, the writing experience was noticeably superior. The "medium point" (0.7mm) combined with the new liquid gel ink formula promised an effortless glide, and it absolutely delivered. In real-world use, the Zento pens truly shine. They perform consistently without skipping, delivering a dark, uniform black line that makes handwriting look crisp and clean. The biggest standout feature is the ink's quick-drying property. As someone who writes fairly quickly, smearing is a constant issue with gel pens, but the Zento ink dries so fast that it's virtually smudge-resistant, which is a massive win. The seamless soft grip is comfortable and helps prevent hand fatigue during extended writing sessions. The barrel itself, made from 76% recycled material, adds an unexpected layer of satisfaction to the purchase. The only minor point of consideration is that the black ink, while dark and vivid, is sometimes described as slightly lighter than the deepest black of some other Uniball lines, but this is a very fine distinction. Pros Super-Smooth Writing: The liquid gel ink provides an effortless, non-scratchy writing experience. Quick-Drying Ink: Significantly reduces smudging and is excellent for fast writers and left-handers. Comfortable Grip/Design: The minimalist barrel with a seamless soft grip is comfortable for long-term use. Eco-Friendly Barrel: Made from 76% recycled plastic, aligning with environmental consciousness. Strong, Functional Clip: The spring-loaded wire clip is durable and easily attaches to notebooks or pockets. Cons Ink Blackness: Some users find the black ink, while very good, is not the absolute deepest shade of black compared to some other premium gel pens. Refill Availability/Compatibility: While the pen body is refillable (often taking other Uniball refills), the specific Zento refill may not be as universally available as others. Verdict The Uniball Zento Gel Ink Rollerball Pen is an absolute winner and easily warrants a 5-star rating. It is best for anyone who values a remarkably smooth, quick-drying, and consistent writing experience for everyday use, professional work, or intensive note-taking. If you've been looking for a reliable, smudge-free pen that is both aesthetically pleasing and comfortable to hold, the Zento is well worth the price.
Review: Perfeitos

## Features

- Retractable 0.7mm medium pens create ultra-smooth writing experience with every stroke.
- Quick-dying, extremely vivid liquid gel ink provides smooth writing flow that prevents smearing.
- Sleek minimalist barrel has a seamless soft grip and is made of 76% recycled material.
- Functional spring-loaded clip easily attaches to pockets and notebooks.
- Thoughtfully curated and on-trend barrel colors evoke a sense of tranquility and mindfulness.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9CR9V9V |
| Best Sellers Rank | #7,803 in Office Products ( See Top 100 in Office Products ) #195 in Gel Ink Rollerball Pens |
| Brand | uni-ball |
| Closure | Retractable |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (273) |
| Date First Available | 24 October 2024 |
| Grip Type | Ribbed |
| Ink Color | Black |
| Item Weight | 141 g |
| Line Size | 0.7mm |
| Manufacturer | Uni-ball |
| Manufacturer Part Number | 70665 |
| Material Type | Plastic Liquid Ink Gel |
| Model number | 70665 |
| Number of Items | 12 |
| Pencil Lead Degree (Hardness) | HB |
| Point Type | Medium |
| Product Dimensions | 0.76 x 1.27 x 19.3 cm; 140.61 g |
| Size | 1 Count (Pack of 12) |

## Product Details

- **Age range (description):** Adult
- **Brand:** uni-ball
- **Colour:** Black
- **Ink colour:** Black
- **Writing instrument form:** Multifunction Writing Instruments

## Images

![Zento Gel Ink Rollerball Pens, 12 Black Medium Point Smooth Writing Pens, Colored Japanese Pens, Zen Colors - Image 1](https://m.media-amazon.com/images/I/71pm4jSBvUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***R on 1 October 2025*

LDR: Super-smooth, quick-drying black gel ink in an aesthetically pleasing, comfortable, and environmentally conscious barrel. A top-tier choice for effortless, smudge-free writing. I recently purchased the 12-pack of Uniball Zento Gel Ink Rollerball Pens because I was in the market for a reliable, super-smooth pen for long-form note-taking and journaling. My initial impression was excellent: the sleek, minimalist design is immediately appealing, and the moment I put the pen to paper, the writing experience was noticeably superior. The "medium point" (0.7mm) combined with the new liquid gel ink formula promised an effortless glide, and it absolutely delivered. In real-world use, the Zento pens truly shine. They perform consistently without skipping, delivering a dark, uniform black line that makes handwriting look crisp and clean. The biggest standout feature is the ink's quick-drying property. As someone who writes fairly quickly, smearing is a constant issue with gel pens, but the Zento ink dries so fast that it's virtually smudge-resistant, which is a massive win. The seamless soft grip is comfortable and helps prevent hand fatigue during extended writing sessions. The barrel itself, made from 76% recycled material, adds an unexpected layer of satisfaction to the purchase. The only minor point of consideration is that the black ink, while dark and vivid, is sometimes described as slightly lighter than the deepest black of some other Uniball lines, but this is a very fine distinction. Pros Super-Smooth Writing: The liquid gel ink provides an effortless, non-scratchy writing experience. Quick-Drying Ink: Significantly reduces smudging and is excellent for fast writers and left-handers. Comfortable Grip/Design: The minimalist barrel with a seamless soft grip is comfortable for long-term use. Eco-Friendly Barrel: Made from 76% recycled plastic, aligning with environmental consciousness. Strong, Functional Clip: The spring-loaded wire clip is durable and easily attaches to notebooks or pockets. Cons Ink Blackness: Some users find the black ink, while very good, is not the absolute deepest shade of black compared to some other premium gel pens. Refill Availability/Compatibility: While the pen body is refillable (often taking other Uniball refills), the specific Zento refill may not be as universally available as others. Verdict The Uniball Zento Gel Ink Rollerball Pen is an absolute winner and easily warrants a 5-star rating. It is best for anyone who values a remarkably smooth, quick-drying, and consistent writing experience for everyday use, professional work, or intensive note-taking. If you've been looking for a reliable, smudge-free pen that is both aesthetically pleasing and comfortable to hold, the Zento is well worth the price.

### ⭐⭐⭐⭐⭐ Review
*by J***N on 30 November 2025*

Perfeitos

### ⭐⭐⭐⭐⭐ Review
*by T***S on 25 September 2025*

These are my new "Go-to" pen. They write extremely easily and are smudge resistant if left for a second to dry. The barrel is comfortable in my hands which I find great, along with the longevity of the ink.

## Frequently Bought Together

- Uniball Zento Gel Ink Rollerball Pens, 12 Black Medium Point Smooth Writing Pens, Colored Japanese Pens, Zen Colors
- uniball Zento Liquid Gel Ink Retractable Pens, Medium Point (0.7mm), Boho Barrels, Black Ink, Dozen
- uniball Zento Liquid Gel Ink Retractable Pens, Medium Point (0.7mm), Muted Barrels, Black Ink, Dozen

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-01*