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🖋️ Write with clarity, style, and conscience — the pen that means business.
The uni-ball Zento Gel Ink Rollerball Pens feature a 0.7mm medium tip delivering ultra-smooth, smudge-resistant writing with quick-drying, vivid gel ink. Designed with a minimalist barrel made from 76% recycled materials, these retractable pens combine eco-conscious craftsmanship with ergonomic comfort. Their spring-loaded clip and calming Zen-inspired colors make them a stylish, practical choice for professionals seeking precision and mindful design in everyday writing.




| ASIN | B0D9CR9V9V |
| Additional Features | Ergonomic, Liquid Ink, Smudge Free, Soft Grip, Visible Ink Level |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | #22,723 in Office Products ( See Top 100 in Office Products ) #531 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand | uni-ball |
| Brand Name | uni-ball |
| Closure Type | Retractable |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 433 Reviews |
| Drill Point | Medium |
| Grip Type | Ribbed |
| Hand Orientation | Ambidextrous |
| Hardness | HB |
| Included Components | 12 Pens, Durable Precision Tip, Fraud Proof Ink, Liquid Gel |
| Ink Base | Water |
| Ink Color | Black |
| Ink colour | Black |
| Item Diameter | 0.7 Millimeters |
| Item Dimensions | 8 x 13 x 193 millimeters |
| Item Weight | 0.31 Pounds |
| Line Size | 0.7mm |
| Manufacturer | Uni-ball |
| Material | Plastic Liquid Ink Gel |
| Material Type | Plastic Liquid Ink Gel |
| Model Name | Zento |
| Model Number | 70665 |
| Pattern | Business, Professional, School, Work |
| Recommended Uses For Product | Calligraphy, Carpentry, Marking Out, Sketching, Writing |
| Style | Zen |
| Subject Character | Zen |
| Theme | Animal, Cartoon, Fantasy, Floral, Rainbow |
| UPC | 030246706657 |
| Unit Count | 12 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Gel Pen |
| Writing Technique | gel ink |
| Writing instrument form | Gel Pen |
J**O
Excelente bolígrafo que va más allá que una moda
Sabemos que el marketing es un conjunto de falacias "bien dichas", a mi me pasa que cuando veo que hay un "hype" espontáneo automáticamente gyardo mis distancias y basta esperar unos cuantos dias para ver cómo todo termina siendo un fiasco y decepción absoluta. Pasa seguido y se ha vuekta casi una norma. Pero también pasa que hay productos que son la excepción y debo entonces aceptar que todavia hay productos que callan bocas y nos sorprenden. Hace unos meses en Japón se hablaba de una serie de bolígrafos Uniball (ya casi mítica) que se agotaron en muy poco tiempo y que era imposible encontrar en las siempre bien surtidas tiendas de "stationery" en el país asiático. Se trata de los bolígrafos Zento de uniball y definitivamente entiendo ahora la razón de tantos elogios y laa acciones de terminar con todas las existencias de estos boligrafos (en sus 3 presentaciones) en tan poco tiempo. Sólo puedo decir que es un producto tan simple y tan correcto, implacable e irréprochable. Algo tan simple como un boligrafo que cumple con sus características y promesas de una forma elegante (creo que eso define los buenos productos japoneses que terminan siendo entrañables). No hay mucho que agregar, el diseño del boligrafo es elegante y sin pleonasmos. Pero lo que sí es muy destacable es la tinta y la punta del boligrafo que en conjunto producen una sensación de escritura superior, fluida y muy eficiente. Nunca sentí que mi mano fluyera así con ninguna pluma. Una tinta noble que no te arruina los cuadernos (secado rápido y no se gotea o transmina). Muy recomendable y si pruebas una sola pluma sé que querrás comprar la caja y no quedarte sin seguir escribiendo. Vale absolutamente la compra, la relacion calidad/precio es contundente sobre todo si quieres iniciar con el modelo básico y de pronto buscarás pasar al modelo intermedio y eventualmente al signature.
T**R
The Perfect Glide: Uniball Zento Black Medium Point Gel Pens
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.
R**O
Escrita macia e não falha
A escrita dessa caneta da Uniball é muito macia. Uma das mais confortáveis que já usei. A ponta é 0.7 mas no papel parece mais grossa do que uma energel. O preto da tinta é forte e não falha. O corpo tem cores sóbrias e o toque parece aveludado, gerando boa aderência da mão durante o uso.
S**A
Real joy and pleasure of writing
Excellent pens. Simply smooth and joy to write with. Highly recommended. Pens arrived well before time too in very good packing.
J**N
High quality pens
These pens are very easy to write with
Trustpilot
1 month ago
1 week ago