Invisible Writing Magic Pen UV Light Ultra Violet Ink Hidden Secret Message LED

20ml Multifunction Magic Led Lights Light Yanchao Invisible Pen. Color: Green Purpel Blue Red Yellow Black (Color Is Random). size 13 cm (length).

Invisible Ink Pen: Harmless and flavorless ink pens are healthy toys for your children. It can leave smooth and colorful disappearing inks marks on T-Shirts, paper, skin, and any surface, permanent but washable. With UV Light: The invisible magic ink pen enables you to write a secret message which is invisible after you write with it unless you light on the UV light to see the secret message perfectly. Besides, the dazzling pen with UV light also can be a money checker in daily life.

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