---
product_id: 41503266
title: "Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc)"
brand: "pilot"
price: "$13.41"
currency: USD
in_stock: true
reviews_count: 13
category: "Pilot"
url: https://www.desertcart.us/products/41503266-pilot-4-colors-ballpoint-pen-acroball-4-extra-fine-black
store_origin: US
region: United States of America
---

# water-resistant Acro ink 0.5mm extra fine tip 4 vibrant ink colors Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc)

**Brand:** pilot
**Price:** $13.41
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your writing game with the pen that means business—and color!

## Quick Answers

- **What is this?** Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc) by pilot
- **How much does it cost?** $13.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/41503266-pilot-4-colors-ballpoint-pen-acroball-4-extra-fine-black)

## Best For

- pilot enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Smart & Refillable:** Sustain your productivity and the planet with easy-to-replace ink refills that keep your pen—and your ideas—flowing.
- • **Precision Meets Smoothness:** Experience ultra-fine 0.5mm lines with Pilot’s Acro ink that glides seamlessly without skipping or smudging.
- • **All-in-One Color Powerhouse:** Switch effortlessly between black, red, blue, and green for dynamic note-taking and color-coded precision.
- • **Grip That Works as Hard as You Do:** Ergonomic rubber tire-pattern grip ensures no-slip control during marathon meetings or creative bursts.
- • **Built to Last, Designed to Impress:** Durable soft-clip mechanism withstands 100,000 clips, combining resilience with sleek office style.

## Overview

The Pilot 4 Colors Ballpoint Pen (Acroball 4 Extra Fine) offers four vibrant ink colors in one sleek, refillable pen. Featuring a smooth 0.5mm tip and innovative water-resistant Acro ink, it delivers precise, skip-free writing. Its ergonomic rubber grip and ultra-durable soft-clip make it a reliable companion for professionals who demand style, comfort, and lasting performance.

## Description

This pen is a four-color Black, Red, Blue and Green ballpoint pen that uses the Acro ink developed by the Pilot. The oil-based ink has 1/5 of the viscosity of conventional oil-based inks. The unique blend of ink and lubricants allows the ball at the tip of the pen to rotate smoothly by reducing friction. This creates an enjoyable, non-skip writing experience. The ink is satisfyingly pigmented and is also water-resistant. The pen has a unique rubber grip developed by Pilot that sports a tire pattern, which prevents your hand From slipping. The clip on the pen uses a coil spring with a "soft clip" Mechanism that can be clipped 100, 000 times without breaking, according to Pilot testing. Not only is it durable, The clip is extremely easy to open and use.

Review: Pen LOVERS - This is the ONE to own! - I'll just start by saying that I have autism and one of my biggest struggles is sensory issues with writing on paper. My top pens are the ones that glide across paper the way you could only dream of. I have tested nearly 900 different types/brands/styles of black ink pens and this pen right here has become my NUMBER ONE pen. PROS - SMOOTH WRITING: It writes so beautifully on all types of paper (my cheap Walmart notebook, my field notebooks, my expensive thick paper, napkins, etc). It's a fine tip WITHOUT being scratchy or damaging the paper (previously loved pilot 0.38 and 0.25 tips). - FINE TIPS: Pen is a 0.5 tip, which I consider thicker than what I normally love, but this writes and is thin like my 0.38 pen, so yeehaw for me. - 4 COLORS IN 1: I work in healthcare and round on so many patients, I hated carrying around 3 pen colors AND a highlighter in my fanny pack, so I started the hunt for a multi-color pen. My delight when I saw that Pilot made this one!! I've tried other competing brands / random other brands of multi-color click pens and they just don't perform as well as this one (they smudge, poor writing quality, weird weight). - SMALL: Its not overly thick/big with the multiple colors to ruin the ergonomic feel of it in your hand. My hand never gets tired. - REFILLABLE: There is only one other pen I have actually used so much it needed refilled on ink (which was the platinum preppy fountain pen), however, I have now worn TWO of these pens out in the black color. Luckily, refills are easy to buy so I can just swap out the ink since the pen barrel is so high quality and still looks brand new. CONS - The clicker's are placed at the TOP of the pen, so because of my small hands, I have to stop what I'm writing completely to reach up on the pen and click the colors. This is the one point that I do wish the clickers were in the same spot as this one cheaper brand on desertcart that comes in a multipack (they write well but they aren't as ergonomic/comfy in the hand). OVERALL This pen is my favorite thing ever.
Review: Great for nursing clinicals. - I love this pen for nursing clinicals! I had the classic four color but like this one so much more due to the fine point. The pink color is cute as well and I like the spring clip.

## Features

- 4 colors Ballpoint pen: black, red, blue, green
- Acro ink adopted
- Ballpoint size: 0.5mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00L7MTWKY |
| Additional Features | Waterproof |
| Age Range (Description) | Kid, Teen, Adult |
| Age Range Description | Kid, Teen, Adult |
| Best Sellers Rank | #9,944 in Office Products ( See Top 100 in Office Products ) #236 in Ballpoint Pens |
| Body Shape | Round |
| Brand | PILOT |
| Brand Name | PILOT |
| Closure Type | Snap |
| Color | Clear |
| Customer Reviews | 4.6 out of 5 stars 1,465 Reviews |
| Drill Point | Extra Fine |
| Global Trade Identification Number | 04902505482366 |
| Grip Type | non-skip |
| Hand Orientation | Ambidextrous |
| Included Components | Refill |
| Ink Base | Oil |
| Ink Color | Black, red, blue and green |
| Item Dimensions | 0.54 x 5.67 x 0.54 inches |
| Line Size | 0.5mm |
| Manufacturer | Pilot |
| Material | Rubber |
| Material Type | Rubber |
| Model Name | BKAB-45EF-NCC |
| Model Number | BKAB-45EF-NCC |
| Recommended Uses For Product | Writing |
| Style | Refillable |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | ballpoint |

## Product Details

- **Age Range (Description):** Kid, Teen, Adult
- **Brand:** PILOT
- **Color:** Clear
- **Ink Color:** Black, red, blue and green
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc) - Image 1](https://m.media-amazon.com/images/I/51dEj78gwfL.jpg)
![Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc) - Image 2](https://m.media-amazon.com/images/I/21gvCIN60QL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Are these really extra fine? I'm looking for at least a .5**
A: Yes, very fine point. My favorite pen to write with.

**Q: Is this like G-2 .7? What multicolor pen is like g-2 .7?**
A: No. A G-2 is a gel pens. This is a ballpoint pen. This is actually a “Acroball” Pilot pen. There is a big difference between a gel pen and a ball point pen. Look up, “Different type of pens” to learn which types you prefer.

**Q: Can the 0.38mm refills be used for this pen?**
A: Fine

**Q: Ia there a penicl as well?**
A: No, there isn’t a pencil

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pen LOVERS - This is the ONE to own!
*by D***S on September 14, 2025*

I'll just start by saying that I have autism and one of my biggest struggles is sensory issues with writing on paper. My top pens are the ones that glide across paper the way you could only dream of. I have tested nearly 900 different types/brands/styles of black ink pens and this pen right here has become my NUMBER ONE pen. PROS - SMOOTH WRITING: It writes so beautifully on all types of paper (my cheap Walmart notebook, my field notebooks, my expensive thick paper, napkins, etc). It's a fine tip WITHOUT being scratchy or damaging the paper (previously loved pilot 0.38 and 0.25 tips). - FINE TIPS: Pen is a 0.5 tip, which I consider thicker than what I normally love, but this writes and is thin like my 0.38 pen, so yeehaw for me. - 4 COLORS IN 1: I work in healthcare and round on so many patients, I hated carrying around 3 pen colors AND a highlighter in my fanny pack, so I started the hunt for a multi-color pen. My delight when I saw that Pilot made this one!! I've tried other competing brands / random other brands of multi-color click pens and they just don't perform as well as this one (they smudge, poor writing quality, weird weight). - SMALL: Its not overly thick/big with the multiple colors to ruin the ergonomic feel of it in your hand. My hand never gets tired. - REFILLABLE: There is only one other pen I have actually used so much it needed refilled on ink (which was the platinum preppy fountain pen), however, I have now worn TWO of these pens out in the black color. Luckily, refills are easy to buy so I can just swap out the ink since the pen barrel is so high quality and still looks brand new. CONS - The clicker's are placed at the TOP of the pen, so because of my small hands, I have to stop what I'm writing completely to reach up on the pen and click the colors. This is the one point that I do wish the clickers were in the same spot as this one cheaper brand on amazon that comes in a multipack (they write well but they aren't as ergonomic/comfy in the hand). OVERALL This pen is my favorite thing ever.

### ⭐⭐⭐⭐⭐ Great for nursing clinicals.
*by M***W on October 15, 2025*

I love this pen for nursing clinicals! I had the classic four color but like this one so much more due to the fine point. The pink color is cute as well and I like the spring clip.

### ⭐⭐⭐⭐⭐ Who Knew? 1970's Again In A Pen
*by L***. on March 16, 2026*

Who knew they still made these? They work great and a great value. Very durable and I love the color choices in one pen. They don't smear and the pen writes smooth on the paper. I'm thrilled.

## Frequently Bought Together

- Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-Ncc)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-04*