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  • All Purpose Blue Writer Dauber. Liquid only seen with black light. Totally invisible.
  • Image 2
  • Toilet cover markings seen with black light.
  • Sink markings seen with black light.

Invisible Ink Writer Dauber

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Product Description

All Purpose Writer Dauber

Holds approximately 1 1/2 ounces of clear invisible marking ink with one inch diameter felt tip. Make temporary marks that glow BLUE using longwave uv black light. Can be easily removed from toilets, sinks, stainless steel surfaces, and other non porous surfaces. Totally invisible. Test for suitability prior to using for hard surface inspections. Also great for paper marking, to temporary id markings on paper or cardboard products for easy identification. Not a permanent marking ink. Did my staff clean? Or even touch the surface? Now you will know!

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