---
product_id: 21973082
title: "Wow! Retractable Ballpoint Pen, (1.0mm), Medium Line, Black Ink, Box of 12(BK440-A)"
brand: "pentel"
price: "AR$34585"
currency: ARS
in_stock: true
reviews_count: 13
category: "Pentel"
url: https://www.desertcart.com.ar/products/21973082-wow-retractable-ballpoint-pen-1-0mm-medium-line-black-ink
store_origin: AR
region: Argentina
---

# Retractable tip with dual-click mechanism Triangular barrel & grip for ergonomic hold 1.0mm medium tip for smooth writing Wow! Retractable Ballpoint Pen, (1.0mm), Medium Line, Black Ink, Box of 12(BK440-A)

**Brand:** pentel
**Price:** AR$34585
**Availability:** ✅ In Stock

## Summary

> 🖊️ Write Boldly, Stand Out Effortlessly

## Quick Answers

- **What is this?** Wow! Retractable Ballpoint Pen, (1.0mm), Medium Line, Black Ink, Box of 12(BK440-A) by pentel
- **How much does it cost?** AR$34585 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/21973082-wow-retractable-ballpoint-pen-1-0mm-medium-line-black-ink)

## Best For

- pentel enthusiasts

## Why This Product

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

## Key Features

- • **Ergonomic Triangular Grip:** Unique shape prevents rolling and maximizes comfort during long writing sessions.
- • **Vibrant Transparent Barrel:** Stylish colors that match ink for quick, personalized selection and standout desk appeal.
- • **Lifetime Warranty Assurance:** Pentel’s exclusive limited lifetime warranty guarantees durability and long-term value.
- • **Dual-Click Retractable Design:** Top click to advance tip, side click to retract—effortless control at your fingertips.
- • **Reliable Medium Line Precision:** 1.0mm metal tip delivers clear, consistent lines perfect for professional notes and signatures.

## Overview

The Pentel Wow! Retractable Ballpoint Pen combines a distinctive triangular barrel and latex-free grip for superior comfort and control. Featuring a smooth 1.0mm medium tip and a unique dual-click retractable mechanism, it offers reliable, stylish writing with vibrant transparent barrels matching the ink color. Packaged in a convenient box of 12, these pens come backed by Pentel’s limited lifetime warranty, making them a durable, affordable choice for professionals who demand both function and flair.

## Description

The Pentel® Wow! retractable ballpoint pen offers a distinctive design that stands out in a crowd. The unique triangular-shaped barrel comes in variety of stylish, transparent colors to match your own personal taste. The latex-free grip is also triangular, which makes it easy to hold and keeps the pen from rolling off your desk. To advance the tip, simply click the top; click the side button to retract. 1.0mm metal tip writes medium lines. The ink colors match the barrel colors for easy color selection. All Wow! pens are covered by Pentel’s exclusive limited lifetime warranty.

Review: Great Pens - very functional and very durable. - These are great pens - they write clear and distinct - the shape of the barrel is very comfortable and improved the process of writing (they are 3 sided) - very easy to use - with a clip on the side the pen won't roll away if you drop it- they are very durable also.
Review: Nice! - Easy writing. Nice pens.

## Features

- Unique triangular-shaped barrel & grip make it easy to hold and keep pen from rolling off desks
- Distinctive design stands out in a crowd
- Low in price yet high in quality
- Maximum comfort and control with the latex-free grip
- Click top to advance tip; click side button to retract
- 1.0mm tip writes medium lines
- Stylish, transparent barrel colors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000UHOXYC |
| Best Sellers Rank | #26,083 in Office Products ( See Top 100 in Office Products ) #678 in Ballpoint Pens |
| Brand | Pentel |
| Closure | Button |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (467) |
| Date First Available | June 22, 2007 |
| Grip Type | Contoured |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.422 ounces |
| Item model number | BK440-A |
| Line Size | 1.0-1.9mm |
| Manufacturer | Pentel |
| Manufacturer Part Number | BK440A |
| Material Type | Metal |
| Number of Drawers | 2 |
| Number of Items | 12 |
| Point Type | Medium |
| Product Dimensions | 5.88 x 3.38 x 4.5 inches |
| Size | 1 Count (Pack of 12) |
| Tip Type | Metal |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Pentel
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Wow! Retractable Ballpoint Pen, (1.0mm), Medium Line, Black Ink, Box of 12(BK440-A) - Image 1](https://m.media-amazon.com/images/I/71I4jD0yLIL.jpg)

## Questions & Answers

**Q: What kind of ink is in the bk440? Water based or oil based?**
A: Hello consumer!
The item noted as BK440 Wow! Features  an oil based type of ink.
Sincerely, 
Consumer Quality Assurance team
Pentel of America, Ltd.
4000 E. Airport Dr., Suite C
Ontario, CA 91761 (USA)
1-(855) 528-4101
warranty@pentel.com

**Q: How does the writing compare to the pentel rsvp?**
A: I like this pen a lot better than the RSVP. I think they have the tendency to run and it makes your paper(s) messy looking and difficult to read. I threw a lot of RSVP’s in the.garbage for this reason. I don’t like throwing things away if they have a use, but when a pen does this, it’s better to just throw it away

**Q: Is medium the same as 0.7mm or 1.0mm ?**
A: Sure. Keeping in mind that this pen is a total pile of crap. With that being said it goes from 1.0mm all the way to.00001mm in one single letter. It cuts out more than a 13 year old boys voice. Did I mention this pen is a pile of crap? Anyway I hope you make the right decision and use a quill and squid ink instead, old school yet reliable like having a fancy hipster moustache (thats how hipsters spell it nowdays). Hope this helped.

**Q: Do these pens write upside down well? I like to lay in bed and write.**
A: Hello, I had to try to write upside down while in bed, and yes it does write while writing upside down. Who knew, we do now. I wrote for a while and the pen just kept on writing. So that is a pretty neat pen to have. Happy writting!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Pens - very functional and very durable.
*by B***L on November 20, 2025*

These are great pens - they write clear and distinct - the shape of the barrel is very comfortable and improved the process of writing (they are 3 sided) - very easy to use - with a clip on the side the pen won't roll away if you drop it- they are very durable also.

### ⭐⭐⭐⭐⭐ Nice!
*by C***Y on February 1, 2026*

Easy writing. Nice pens.

### ⭐⭐⭐⭐⭐ Great Price, Better Quality and Tough!
*by J***D on September 20, 2025*

My absolute favorite pen! It's inexpensive enough for general use, but durable and writes on stuff at odd angles without "stopping". Highly recommend this pen.

## Frequently Bought Together

- Pentel® WOW!™ Retractable Ballpoint Pens, Medium Point, 1.0 mm, Transparent Black Barrels, Black Ink, Pack Of 12
- Pentel® WOW!™ Retractable Ballpoint Pens, Medium Point, 1.0 mm, Transparent Blue Barrels, Blue Ink, Pack Of 12
- Pentel® WOW!™ Retractable Ballpoint Pens, Medium Point, 1.0 mm, Transparent Red Barrels, Red Ink, Pack Of 12

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**Shop now:** [https://www.desertcart.com.ar/products/21973082-wow-retractable-ballpoint-pen-1-0mm-medium-line-black-ink](https://www.desertcart.com.ar/products/21973082-wow-retractable-ballpoint-pen-1-0mm-medium-line-black-ink)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-12*