---
product_id: 34183223
title: "Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue"
brand: "opticz"
price: "SAR 78"
currency: SAR
in_stock: true
category: "Opticz"
url: https://www.desertcart.com.sa/products/34183223-opticz-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue
store_origin: SA
region: Saudi Arabia
---

# Water-resistant permanent ink Bright blue UV glow Extra large broad tip Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue

**Brand:** opticz
**Price:** SAR 78
**Availability:** ✅ In Stock

## Summary

> 🔦 Illuminate the unseen, own the night!

## Quick Answers

- **What is this?** Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue by opticz
- **How much does it cost?** SAR 78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/34183223-opticz-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 Glow:** Formulated safe for skin application, ideal for glowing body art that stands out at any blacklight party.
- • **Fast-Drying & Water-Resistant:** Permanent alcohol-based ink dries quickly and resists water, keeping your markings intact and reliable.
- • **Versatile UV Security & Art Tool:** From event tickets to secret codes and glowing artwork, this marker is your go-to for professional-grade invisible marking.
- • **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:** Invisible ink that only reveals under UV blacklight—perfect for secret messages and exclusive 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, delivering twice the ink volume of standard markers. Its alcohol-based, water-resistant ink remains invisible under normal light but glows bright blue under UV blacklight, making it ideal for security marking, invisible body art, and creative UV projects. Safe for skin use and fast drying, this permanent marker is a must-have for professionals and creatives seeking reliable, semi-permanent invisible ink solutions.

## 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 | #42,557 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #499 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

![Opticz 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.com.sa/products/34183223-opticz-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue](https://www.desertcart.com.sa/products/34183223-opticz-uv-blacklight-reactive-large-tip-invisible-ink-marker-blue)

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*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-09-25*