Item Name: Magic Marker Invisible Ink Pen UV Counterfeit Lamp Ballpoint Drawing Pecil. Pen tip:1.0mmColor:sliverSize:14*1cmMaterial:PlasticInk quality: oilyProduct name: LDE stealth lamp ballpoint pen100% Brand New & High Quality! Package Included:1pc Invisible Ink PenDescription:1.Writes on most surfaces. With built in uv Light, Kids will write plenty of secret messages to each other and its not visible to the naked eye turn the uv light on the writing appears2.You can write on most surfaces, but whether it can stay on the surfacesIt depends on what kind of the material you write on.If you write on the papers, it can stay on permanent if you write on the metal or plasticsIt may couldn't last long, because it will be erased easily due to the characteristic of the metal and plastics. *
