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"6 Pieces Light Ink Pen Invisible Ink Marker Disappearing Ink Secret Pen with 6 Pieces Mini UV LED Keychain Flashlight Marker Keychain for Secret Notes Money Identify (Black)"

6 Pieces Light Ink Pen Invisible Ink Marker Disappearing Ink Secret Pen with 6 Pieces Mini UV LED Keychain Flashlight Marker Keychain for Secret Notes Money Identify (Black)
6 Pieces Light Ink Pen Invisible Ink Marker Disappearing Ink Secret Pen with 6 Pieces Mini UV LED Keychain Flashlight Marker Keychain for Secret Notes Money Identify (Black)

Funny design: the marks of these invisible ink pens are completely invisible under normal light, but they are extremely bright under light; You can use it to write a secret message or mark your valuables

Categories:
Office Products
Office & School Supplies
Writing & Correction Supplies
Markers & Highlighters
Permanent Markers

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1 comment of this product found across Reddit:
catsnake1951 /r/TripCaves
2 points
1970-01-19 22:24:56.71 +0000 UTC

Depending in what you like, something we did was use invisible uv pens and drew on the walls, it's loads of fun and you can't see it unless the lights are on, it's not for everyone but I like the neon punk vibe of crude drawings like it was a concert hall. They do eventually go away tho. https://www.amazon.com/dp/B09FSQHP9F/ref=cm_sw_r_apan_glt_fabc_RGHP26M04G2EPZBZN8JS?_encoding=UTF8&psc=1