---
product_id: 11336247
title: "EnerGel Deluxe RTX Retractable Liquid Gel Pen, Medium Line, Needle Tip, Blue Ink, Box of 12 (BLN77-C), 0.7mm needle"
brand: "pentel"
price: "€ 26.36"
currency: EUR
in_stock: true
reviews_count: 13
category: "Pentel"
url: https://www.desertcart.ie/products/11336247-energel-deluxe-rtx-retractable-liquid-gel-pen-medium-line-needle
store_origin: IE
region: Ireland
---

# ultra-fast drying ink sleek metal-accented barrel 0.7mm precision needle tip EnerGel Deluxe RTX Retractable Liquid Gel Pen, Medium Line, Needle Tip, Blue Ink, Box of 12 (BLN77-C), 0.7mm needle

**Brand:** pentel
**Price:** € 26.36
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, write smart — the pen that means business.

## Quick Answers

- **What is this?** EnerGel Deluxe RTX Retractable Liquid Gel Pen, Medium Line, Needle Tip, Blue Ink, Box of 12 (BLN77-C), 0.7mm needle by pentel
- **How much does it cost?** € 26.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/11336247-energel-deluxe-rtx-retractable-liquid-gel-pen-medium-line-needle)

## 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

- • **Professional Style:** Metal-accented barrel design that commands respect in every meeting.
- • **Comfort Meets Control:** Latex-free ribbed grip for fatigue-free writing during marathon brainstorming sessions.
- • **Refillable & Reliable:** Sustainable choice with affordable refills that keep you writing longer and greener.
- • **Smudge-Free Confidence:** Lightning-fast drying liquid gel ink ensures no smears—even for lefties.
- • **Smooth Precision Writing:** Experience flawless 0.7mm needle tip lines that elevate your notes and signatures.

## Overview

The Pentel EnerGel Deluxe RTX is a premium retractable gel pen featuring a 0.7mm needle tip for precise medium lines, combined with fast-drying liquid gel ink that prevents smudging. Its sleek metal-accented barrel and latex-free grip deliver professional style and all-day comfort. Highly rated and refillable, it’s the go-to pen for professionals who demand smooth, reliable writing performance.

## Description

desertcart.com: Pentel EnerGel Deluxe RTX Retractable Liquid Gel Pen, Medium Line, Needle Tip, Blue Ink, Box of 12 (BLN77-C), 0.7mm needle : Office Products

Review: Good pens - In every way, these perform as described. For me, the .7 pens write just a bit too wide. I think I’d been much happier with the .5. They are great pens. UPDATE, January 17th 2026, After having them and using these for a little while, I had to add another star. It turns out I have grown to like these much more. The thicker barrel took a little getting used to, as also the thicker writing line. But these write and flow wonderfully. I like them a bunch! ANOTHER UPDATE!!!LOL!! I just discovered, these pens write upside down!
Review: Great refillable pens! - Love these pens. Very good ink quality, no smearing. Best part is that they can be refilled at a very reasonable price. I have a job that requires me to do a lot of handwriting, so I am very picky about my pens. I used to use 207's, but hated the fact that the refills cost more than another whole pen. These Pentel pens are as good, if not better.

## Features

- High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience
- Liquid gel ink dries so fast even left handed writers love it - no smears, no smudges, no globs
- EnerGel ink writes more smoothly than the leading brand ( Internally tested to be smoother writing than the leading gel pen on standard writing paper)
- Sleek & stylish barrel design with metal accents for a Professional look
- Maximum comfort and control with the latex-free grip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002R0DYYK |
| Best Sellers Rank | #4,590 in Office Products ( See Top 100 in Office Products ) #183 in Gel Ink Pens |
| Brand | Pentel |
| Closure | Retractable |
| Color | Blue |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,397) |
| Date First Available | September 1, 2009 |
| Grip Type | Ribbed |
| Ink Color | Blue |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Item model number | BLN77-C |
| Line Size | 0.7 Millimeters |
| Manufacturer | Pentel |
| Manufacturer Part Number | BLN77-C |
| Material Type | Metal |
| Number of Items | 1 |
| Point Type | Medium |
| Product Dimensions | 1 x 3.13 x 5.88 inches |
| Size | 12 Count (Pack of 1) |
| Tip Type | Metal |

## Product Details

- **Age Range (Description):** Kid, Teen, Adult
- **Brand:** Pentel
- **Color:** Blue
- **Ink Color:** Blue
- **Writing Instrument Form:** Roller Ball Pen

## Images

![EnerGel Deluxe RTX Retractable Liquid Gel Pen, Medium Line, Needle Tip, Blue Ink, Box of 12 (BLN77-C), 0.7mm needle - Image 1](https://m.media-amazon.com/images/I/8103JmXV3IL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will the problem of the cracked barrels that has been going on for over 3 years ever be addressed? I see A LOT of people are having the same problem.**
A: I've had the exact same issue. Pen had a crack just above the grip; the pen doesn't stay together. Have to keep finding the pieces after it goes flying everywhere. I've bought refills already but I won't be buying anymore after I'm done with the refills.

**Q: Are these the cheaper ones made in Mexico or the high quality ones that are made in Japan?**
A: The ones I received (May 2020) were made in Mexico. Definitely cheaply made - even the box was falling apart when I received them. One barrel was already cracked. We could attribute that to bad packaging, but my "old favorite", which was made in Japan, would NOT have cracked in shipping. I also noticed right away that the barrel color was different. 
I've used the ones made in Japan for 20+ years and they were - emphasis on were - my favorite pen.

**Q: The title/description says .5 mm needle tip, but the picture shows the larger medium tip. Which is correct?**
A: There are 3 options of tip size on the one page- .5mm .7mm and 1mm.
Not all sizes are available in all color options and not all color and size combinations are available in the multiple pack quantity options. Whichever size you choose in whichever color opted for will arrive in the pack quantity selected despite what the generic picture depicts as it is only 1 of the many options offered.

**Q: Is the ink waterproof? Can I use highlighters without smear?**
A: The ink is waterproof and you can use a highlighter - just make sure the ink is dry before highlighting.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good pens
*by L***R on January 14, 2026*

In every way, these perform as described. For me, the .7 pens write just a bit too wide. I think I’d been much happier with the .5. They are great pens. UPDATE, January 17th 2026, After having them and using these for a little while, I had to add another star. It turns out I have grown to like these much more. The thicker barrel took a little getting used to, as also the thicker writing line. But these write and flow wonderfully. I like them a bunch! ANOTHER UPDATE!!!LOL!! I just discovered, these pens write upside down!

### ⭐⭐⭐⭐⭐ Great refillable pens!
*by T***D on December 3, 2025*

Love these pens. Very good ink quality, no smearing. Best part is that they can be refilled at a very reasonable price. I have a job that requires me to do a lot of handwriting, so I am very picky about my pens. I used to use 207's, but hated the fact that the refills cost more than another whole pen. These Pentel pens are as good, if not better.

### ⭐⭐⭐⭐⭐ Best pen
*by B***H on December 23, 2025*

Best pens. They don’t smudge as I write or bleed through the the paper.

## Frequently Bought Together

- Pentel® EnerGel™ Deluxe RTX Retractable Pens, Needle Point, 0.7 mm, Blue Barrel, Blue Ink, Pack Of 12 Pens
- Pentel EnerGel Retractable Liquid Gel Pens, Medium Point, 0.7 mm, Silver Barrel, 12 Black Ink pens, the Ultimate writing pens, the Best Writing Pens for office, school and journaling, Pack of 12

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-04*