---
product_id: 34183223
title: "UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue"
brand: "opticz"
price: "Rp436344"
currency: IDR
in_stock: true
category: "Opticz"
url: https://www.desertcart.id/products/34183223-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue
store_origin: ID
region: Indonesia
---

# Water-resistant & fast drying Bright blue UV glow Extra large broad tip UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue

**Brand:** opticz
**Price:** Rp436344
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen—mark your world in invisible blue brilliance!

## Quick Answers

- **What is this?** UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue by opticz
- **How much does it cost?** Rp436344 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/34183223-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue)

## Best For

- opticz enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Skin-Friendly:** Formulated for safe application on skin, ideal for invisible body art that pops at any blacklight party or event.
- • **Permanent & Water-Resistant:** Fast-drying, alcohol-based ink that resists smudging and water, keeping your markings intact and reliable.
- • **Versatile UV Security & Art Tool:** From event tickets to inventory control and glowing creative designs, this marker is your go-to for professional and playful UV applications.
- • **Double the Ink, Double the Impact:** Extra-large body with twice the ink of standard markers ensures long-lasting use without constant refills.
- • **Invisible by Day, Electric by Night:** Discreet ink that only reveals its vibrant blue glow under UV blacklight—perfect for secret codes and standout events.

## Overview

The Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker in blue features a broad 3mm tip and an extra-large ink reservoir for extended use. Its alcohol-based, water-resistant ink remains invisible in normal light but glows bright blue under UV blacklight, making it ideal for security marking, event management, and creative UV art. Safe for skin application and fast drying, this permanent marker is a must-have for professionals and creatives seeking a cutting-edge invisible ink solution.

## Description

Shop Opticz at the desertcart Arts, Crafts & Sewing store. Free Shipping on eligible items. Save on everyday low prices.

## Features

- Invisible/colorless in normal light. Glows bright blue in UV blacklight. Please note, these markers do NOT glow in the dark. You must have a blacklight to get the glow effects.
- Extra large body with broad tip. Contains twice the ink as our standard sized markers!
- Safe for use on skin. Use for security marking (such as admissions) or create amazing invisible body art designs that glow in blacklight!
- These are the markers you want for semi permanent invisible marking. These markers can be used for: Event Tickets, Industrial Coding, Security Printing, Coupons, Raffle Tickets, Inventory Control, Advertising, and more!
- Ink is fast drying and does not remove easily! Avoid sensitive area such as eyes, mouth, and nose

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01F6IPK00 |
| Additional Features | glows bright blue in blacklight |
| Age Range Description | 18+ |
| Best Sellers Rank | #34,679 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #440 in Drawing Markers |
| Body Shape | Cylindrical |
| Brand Name | Opticz |
| Color | Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,196) |
| Global Trade Identification Number | 00840015102531 |
| Grip Type | Smooth |
| Hand Orientation | Ambidextrous |
| Ink Base | Alcohol |
| Ink Color | Blue |
| Is Waterproof | true |
| Item Diameter | 0.5 inches |
| Item Dimensions | 5.25 x 0.5 x 0.5 inches |
| Line Size | 3 millimeters |
| Manufacturer | DIRECTGLOW LLC |
| Manufacturer Part Number | RSMARKB |
| Marker Type | Permanent Marker |
| Material Type | Plastic |
| Model Number | RSMARKB |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Pattern | Solid |
| Point Type | Medium |
| Recommended Uses For Product | Ultraviolet security, mark personal belongings, glow party, secret messages, drawing, UV art |
| Style | Permanent |
| Surface Recommendation | Textured surfaces yield the best results. |
| Target Audience | Adult |
| Theme | UV blacklight security art |
| UPC | 840015102531 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Marker Pen |

## Product Details

- **Brand:** Opticz
- **Ink Color:** Blue
- **Number of Items:** 1
- **Point Type:** Medium
- **Recommended Uses For Product:** Ultraviolet security, mark personal belongings, glow party, secret messages, drawing, UV art

## Images

![UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue - Image 1](https://m.media-amazon.com/images/I/51YhPUrxVSL.jpg)

## Questions & Answers

**Q: The "product description" says the ink is permanent and solvent based. However "features & details" says water based. Which is correct?**
A: Ok, I just double checked this.  It is a 60% water based ink, but it is permanent and water does not remove it.  We just verified with testing.

**Q: How long does this last?**
A: We bought it a year ago. With cap on, lasts. We just used it again ast week. As for what you've written, unless it suffers wear and tear, it lasts. Stuff penned last year still shows.

**Q: Does it come with a uv light? Once you have written on paper or other surface how long does the message last?**
A: No Uv light. Stays on paper or surface as long as you don't wash it off.

**Q: Quiero solo ordenar un set de 3 y me están cobrando ppr 3 set**
A: Agrege uno y luego cambie la cantidad.

## Frequently Bought Together

- Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue
- Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Red
- Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Yellow

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**Shop now:** [https://www.desertcart.id/products/34183223-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue](https://www.desertcart.id/products/34183223-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue)

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-09-23*