This green ultraviolet marker can write invisibly on almost any dry surface, including metal, paper, glass, paint, skin, and currency. The markings remain invisible until illuminated under an ultraviolet light source. Ideal for marking personal property, sensitive notes, thief detection, and covert communications. The ink is heat-proof, waterproof, and non-toxic.
Also available in blue and red
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manufacturer U-Spy Store availability Usually ships the same business day
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Regular Price: $14.99
Special Price $9.99