The body is made of plastic usually which is just like a regular pen.
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Herofiber invisible ink spy pen black with uv light 12 pack mini top secret notepads 12 pack.
Invisible ink spy pen with uv light 12 pack mini top secret notepads 12 pack.
So write private messages or claim your property with an ink supply able to mark over 1 200 of your most prized possessions.
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An uv pen or uv marker has fluorescent yet transparent marks which you can only see under ultraviolet light.
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