Buy Wholesale China Factory Invisible Ultraviolet Uv Marker Pen Assembled 3  Colors Mini Uv Markers Pen & Uv Marker Pen at USD 0.48

Buy Wholesale China Factory Invisible Ultraviolet Uv Marker Pen Assembled 3 Colors Mini Uv Markers Pen & Uv Marker Pen at USD 0.48

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Wholesale dual uv blue fluorescent pens

This is that hard to find UV Blacklight Reactive Invisible Ink for box marking, document marking, and other unique security applications. Only visible under black light. Ink is water proof and very difficult to remove. Best viewed in dark or shaded area. Opticz Blacklight Reactive Invisible Printing Inks are suitable for paper marking as well as non-pourous material marking.

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