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🔦 Unlock the unseen with every stroke — glow where others can’t!
The Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker in blue features a broad 1.5mm tip and double the ink volume of standard markers, delivering bold, invisible markings that glow bright blue under UV blacklight. Perfect for security, event marking, and creative UV body art, this fast-drying, semi-permanent ink is safe for skin and designed for professionals and creatives seeking a unique, high-impact tool.
| ASIN | B01F6IPK00 |
| Additional Features | glows bright blue in blacklight |
| Age Range Description | 18+ |
| Best Sellers Rank | #120,411 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #987 in Drawing Markers |
| Body Shape | Cylindrical |
| Brand | Opticz |
| Brand Name | Opticz |
| Color | Blue |
| Customer Reviews | 4.4 out of 5 stars 1,183 Reviews |
| 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 |
| 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 |
| UPC | 840015102531 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Marker Pen |
P**Y
OPTICZ UV INVISABLE INK PEN
Great security uv pen and its a big pen with lots of ink works great, pay attention to tip size I believe this is 1.5 nib...nice quality and great value for ur buck I got the blue
K**E
Fun way to use.
Best black light invisible marker I’ve bought shows up so clean in the black light. Easy to use dried quickly very high-quality. The one I got glows blue in black light. Very good if you want to write an invisible note, secret letter or even write in your diary/journal.
M**I
Works ok, except on bright white paper
Works ok, except on bright white paper, the brighteners in the paper (or other materials) mask the glow from this blue pen, use red on bright white paper, or other media.
N**H
Good Marker
Drew all over my walls in my house and my girlfriend loves it. Very bright and bold lighting. The tip started to fade after I was done drawing but I put the pen down for a while and it came back with full color!
A**O
Best invisible UV markers
The best invisible UV markers I have found to date. Totally invisible until you put a UV light on it and then lights up like a Christmas tree. Good selection of colors… very bright when UV light introduced.
D**R
Best of its kind
I’ve tried a lot of these kinds of markers, and this is the only one that lasts.
L**S
Fun.
Invisible and works great with black lights. The longer you let it dry the less visible it is. After a few days it is quite hard to see it. Unless you have a black light. The tips are easy for kids to smash. That’s the only thing I don’t like about them. price could be a little lower.
T**L
Very little ink
The pen worked great - but one brand new pen didn’t have enough ink for me to finish a very simple project before running out. I wanted to make a very basic line drawing book for my Bible class. I wasn’t coloring in the outlines, just making single figure outlines. It started running out on the third page. By page 4 I had to alter the image to a single word to make it last. I would have needed three, which would be too expensive for one object lesson. Think glowed great under black light, there was just hardly any in the pen compared to a normal marker of the same size - maybe 15%.
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