2 in 1uv light & invisible ink pen,write secret message,only read by uv light!Competitive both in price and quality,ideal Gift
competitive both in price and quality
with its colourless and solvent based invisible ink, it is suitable for writing on paper. As well as being suitable for domestic use, this special pen is also ideal for use in bank, antique, court and night pub.
Invisible -- Under normal light
Yellow --- Under UV light and black light
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