2 In 1 Invisible Ink Pen Uv Black Light Combo

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This 5" fine point marker, is loaded with special ink that is only visible under UV light. It includes a mini LED UV black light with batteries, so U can view your messages. Kids love them for writing secret messages & notes to each other, students can highlight text books and still sell the book when they finish their coursework. You can mark your personal property with your house number and zip code in case of theft.

Includes free delivery by normal post to any address in Singapore :)