Invisible Ink Marking Kit Includes: (1) Identi-Spy Marker & (1) 9 Led Uv Light. Requires 3 AAA batteries not included. IDENTI-SPY Invisible Ink Dauber Marker is a water based ink seen only with long-wave uv light Black Light. Can mark paper, cardboard, cloth, and much more. Great for hand marking security entry points. For marking hard non porous surfaces the marks can be easily removed with a damp cloth. The perfect cleaning inspection tool. Did staff really clean - or - didn't they.
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1pcs Invisible Fluorescent Pen UV Light Markers Pen Dual Tip 0.5mm/1.0mm Hidden Ink Pen Invisible Pen Children Spy Game Pen - AliExpress
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Invisible Ink Pen
Our IDENTI-SPY marker is refillable using our All Purpose Blue Invisible Ink. Great for marking paper, cardboard, cloth, hand marking, temporary hard
IDENTI-SPY Invisible Ink Marker With Uv Light
Invisible Ink Marking Kit Includes: (1) Identi-Spy Marker & (1) 9 Led Uv Light. Requires 3 AAA batteries not included. IDENTI-SPY Invisible Ink Dauber Marker is a water based ink seen only with long-wave uv light Black Light. Can mark paper, cardboard, cloth, and much more. Great for hand marking security entry points. For marking hard non porous surfaces the marks can be easily removed with a damp cloth. The perfect cleaning inspection tool. Did staff really clean - or - didn't they.
IDENTI-SPY Invisible Ink Dauber Marker with UV Light
1pcs Invisible Fluorescent Pen UV Light Markers Pen Dual Tip 0.5mm/1.0mm Hidden Ink Pen Invisible Pen Children Spy Game Pen - AliExpress
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Invisible ink hi-res stock photography and images - Alamy