Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (4 Ounce Bottle) : Office Products

Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (4 Ounce Bottle) : Office Products

Invisible ink

Invisible in regular light, glows bright blue in blacklight Choose between 5 sizes discounted by quantity. 2oz, 4oz, 8oz, 16oz, and 32oz. Ideal for

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Opticz All Purpose Invisible Blue UV Blacklight Reactive Security

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