invisible ink
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Transparent Invisible Ink with Fluorescent Pen Dip Pen for Diary Confidential /Practice Word /Hand Account Mark
Product sellpoints Fountain pen ink, glass pen ink, 18 ml non-carbon magic invisible ink UV Light Fluorescent ink, secret message writing ink, Gift. Non-carbon Magic invisible ink Invisible ink can only be seen under the irradiation of ultraviolet lamp. The content written in ink will be displayed under ultraviolet light. Ensure sensitive information remains unseen by prying eyes with this invisible ink pen. Messages written with this pen will only become visible once they’re illuminat...