---
product_id: 275827701
title: "4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (BKAB-45EF-CSL)"
brand: "pilot"
price: "HK$173"
currency: HKD
in_stock: true
reviews_count: 5
category: "Pilot"
url: https://www.desertcart.hk/products/275827701-4-colors-ballpoint-pen-acroball-4-extra-fine-black-red
store_origin: HK
region: Hong Kong
---

# 0.5mm extra fine precision Retractable convenience 4 vibrant ink colors 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (BKAB-45EF-CSL)

**Brand:** pilot
**Price:** HK$173
**Availability:** ✅ In Stock

## Summary

> 🖋️ Master your notes with precision and style—because every detail counts.

## Quick Answers

- **What is this?** 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (BKAB-45EF-CSL) by pilot
- **How much does it cost?** HK$173 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/275827701-4-colors-ballpoint-pen-acroball-4-extra-fine-black-red)

## 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

- • **Quad-Color Power:** Switch effortlessly between black, red, blue, and green for dynamic note-taking and flawless organization.
- • **Smooth Glide Ink:** Acroball technology ensures silky-smooth, skip-free ink flow that keeps your thoughts uninterrupted.
- • **Retractable & Ready:** No caps, no hassle—just click and write with a sleek retractable design built for on-the-go pros.
- • **Lightweight & Ergonomic:** At just 9 grams with a comfortable grip, it’s designed for all-day use without fatigue.
- • **Precision at Your Fingertips:** Extra fine 0.5mm tip delivers crisp, clean lines perfect for detailed writing and professional documents.

## Overview

The Pilot 4 Colors Acroball Extra Fine pen combines four vibrant ink colors in one sleek, retractable design. Featuring a 0.5mm extra fine tip and smooth Acroball ink technology, it offers precise, skip-free writing ideal for professionals who demand clarity and efficiency. Lightweight and ergonomic, it’s a must-have tool for seamless multitasking and organized creativity.

## Description

Brand: Pilot Target gender: unisex Closure Type: Retractable

Review: The best healthcare pen! Very fine ball, smooth ink, and it’s my must-have as a nurse. I love it so much I give it as a gift to new nurses!
Review: Muy padre el color, me gusta que sea trasparente, la tinta es muy buena, fue uno de los motivos por la cual la compré

## Features

- 4 Colors Ballpoint Pen
- Acroball 4 extra fine
- BKAB-45EF-CSL

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00L7MTYU2 |
| Brand | Pilot |
| Closure | Retractable |
| Color | Soft Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,317) |
| Date First Available | 20 July 2014 |
| Grip Type | non-skip |
| Ink Color | Blue |
| Item Weight | 9 g |
| Line Size | 0.5mm |
| Manufacturer | Pilot |
| Manufacturer Part Number | BKAB-45EF-CSL |
| Material Type | Plastic |
| Model number | BKAB-45EF-CSL |
| Number of Items | 1 |
| Point Type | Extra Fine |
| Product Dimensions | 1.37 x 14.4 x 1.37 cm; 9 g |

## Product Details

- **Age range (description):** Adult
- **Brand:** Pilot
- **Colour:** Soft Blue
- **Ink colour:** Blue
- **Writing instrument form:** Ballpoint Pen

## Images

![4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (BKAB-45EF-CSL) - Image 1](https://m.media-amazon.com/images/I/614BqoZUxBL.jpg)

## Questions & Answers

**Q: has anyone had trouble with the base of the pen not staying tight?? always wants to fall off...loved the pen otherwise but am hesitant to re- purchase**
A: Love the pen. No problems, just been using it too much, ran out of ink for black and blue. Anybody know what exactly is the refill needed?

**Q: Can you order refill inks?**
A: I was able to get blue and black.

**Q: Is this .38 or .5??**
A: .38. Loved it. But now it’s starting to make blobs.

**Q: Where can I find the correct ink refills for all 4 colors?**
A: Bvrf-8ef

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***E on 13 July 2025*

The best healthcare pen! Very fine ball, smooth ink, and it’s my must-have as a nurse. I love it so much I give it as a gift to new nurses!

### ⭐⭐⭐⭐⭐ Review
*by O***O on 19 February 2020*

Muy padre el color, me gusta que sea trasparente, la tinta es muy buena, fue uno de los motivos por la cual la compré

### ⭐ Review
*by M***D on 26 April 2024*

Just Watch the video. Unusable. I have contacted the seller for a refund.

## Frequently Bought Together

- Pilot 4 Colors Ballpoint Pen, Acroball 4 Extra Fine, Black, Red, Blue & Green (Bkab-45EF-CSL)
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**Shop now:** [https://www.desertcart.hk/products/275827701-4-colors-ballpoint-pen-acroball-4-extra-fine-black-red](https://www.desertcart.hk/products/275827701-4-colors-ballpoint-pen-acroball-4-extra-fine-black-red)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-04*