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UV light is also useful for detecting counterfeit bank notes. Simply use the pen to make a distinguishing mark and use the UV light to make checks. Invisible ink pens are great for marking all kinds of surfaces and applications, especially paper.
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This product is suitable for students to copy workbook copybooks, do exercises, children's drawing, handwriting will disappear in about 20-30 minutes, disappear without leaving traces, does not affect rewriting, does not affect repeated use of the writing board.
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Text visible under ultraviolet light. Fashion and personalization. 1 UV invisible light pen. More places to use it! Light weight, easy to carry. The actual color may be slightly different from the image due to different displays and lighting effects.
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It can be given as a gift to children, and they will feel and happy when they receive the gift.
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You can write anywhere: T-shirts, paper, skin. Permanent but washable! Invisible Pen brings you a variety of fun activities like treasure hunts. 6 Different Colors: 6 pens in 6 different shell colors ( yellow, green, black, blue, purple, rose ).
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STAND OUT FROM THE CROWD - Now you can be with your own quality Tinc products that are fun and safe to use - stand out from the crowd with our stylishly designed lifestyle stationery & accessories! SPY PEN - Send top secret notes with invisible ink and reveal them with the UV Light!
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