---
product_id: 4940493
title: "Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen"
brand: "asr tactical"
price: "€ 20.38"
currency: EUR
in_stock: true
category: "Asr Tactical"
url: https://www.desertcart.hr/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen
store_origin: HR
region: Croatia
---

# Ink fades completely within 1 hour Writes up to 2500 feet before running dry 0.5mm fine point for precise writing Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen

**Brand:** asr tactical
**Price:** € 20.38
**Availability:** ✅ In Stock

## Summary

> 🕵️‍♂️ Write it. Watch it vanish. Own the art of secrecy.

## Quick Answers

- **What is this?** Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen by asr tactical
- **How much does it cost?** € 20.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen)

## Best For

- asr tactical enthusiasts

## Why This Product

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

## Key Features

- • **Authentic Pen Design:** Looks and feels like a regular pen, blending seamlessly into any professional or casual setting.
- • **Cold War Secret Tech:** Inspired by espionage-grade formulas, now accessible for your everyday tactical writing needs.
- • **Precision Fine Point:** 0.5mm tip delivers smooth, clear blue gel ink that’s legible for 15 minutes before fading.
- • **Stealthy Ink Disappears Fast:** Your secret messages vanish within an hour—perfect for confidential notes or playful pranks.
- • **Long-Lasting Writing Capacity:** Write up to 2500 feet—enough for countless covert messages or creative uses.

## Overview

The ASR Tactical Invisible Ink Pen features a fine 0.5mm blue gel ink that remains visible for 15 minutes before fading completely within an hour. Designed with a realistic pen body and a smooth ballpoint tip, it writes up to 2500 feet per refill. Perfect for confidential notes, magic tricks, or spy-inspired fun, this pen brings Cold War-era disappearing ink technology to your desk.

## Description

Need to leave a note for someone, but don't want to them to be able to show anyone else? The disappearing ink pen will allow you to do just that.This special formula was developed during the Cold War and is now encapsulated within the discreet gel pen for general use. Once on the paper, the ink will appear normally for about 15 minutes. Within an hour, the message will have completely vanished and will be unrecoverable; even with ultraviolet light.Note: deconstruction time of the ink will vary depending on ambient conditions.

## Features

- WATCH THE VIDEO: Once on paper, the ink appears fully legible and undiscernable from a normal pen for 15 minutes but slowly starts to disappear; fading within 20-30 minutes; completely after about an hour
- REALLY WORKS: Looks like a real pen with no markings to distinquish it otherwise. Nine out of ten times, you might pick this pen out of a cup of many; it looks like a pen you would want to use; Magicians, spys and secrects oh my
- WRITING CAPACITY: Invisible formula ball point pen will write up to 2500 feet before running out of ink; lots of use and entertainment for all ages
- SPECIFICATIONS: Fine Point; Size: 0.5mm; Ink Color: Blue; Pen Case: Clear
- WARNING: Do not use on any legal document or financial instrument

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0036QU40Q |
| Additional Features | Disappearing Ink |
| Age Range Description | Adult |
| Best Sellers Rank | #126,341 in Office Products ( See Top 100 in Office Products ) #3,240 in Ballpoint Pens |
| Body Shape | Round |
| Brand Name | ASR Tactical |
| Closure Type | Snap |
| Color | Blue |
| Customer Reviews | 3.1 3.1 out of 5 stars (36) |
| Drill Point | Fine |
| Grip Type | smooth |
| Hand Orientation | Ambidextrous |
| Included Components | Disappearing Ink Pen |
| Ink Base | Hybrid |
| Ink Color | Blue |
| Item Diameter | 0.05 inches |
| Item Dimensions | 6 x 0.5 x 0.5 inches |
| Item Type Name | Invisible Ink |
| Item Weight | 4.54 g |
| Line Size | 0.5mm millimeters |
| Manufacturer | ASR Tactical |
| Material Type | Plastic |
| Model Name | Magic Disappearing Ink Pen |
| Model Number | KGBDIP-647 |
| Pattern | Solid |
| Recommended Uses For Product | Writing |
| Style | Disappearing Ink Pen |
| Theme | Writing |
| Unit Count | 1 Count |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | gel ink, ballpoint |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** ASR Tactical
- **Color:** Blue
- **Ink Color:** Blue
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Invisible Ink Pen Secret Formula Disappearing Blue Gel Ink Pen - Image 1](https://m.media-amazon.com/images/I/51oosoYfO2L.jpg)

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**Shop now:** [https://www.desertcart.hr/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen](https://www.desertcart.hr/products/4940493-invisible-ink-pen-secret-formula-disappearing-blue-gel-ink-pen)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-01*