Mittory 1MLMultifunction Luminous Light Invisible Ink Pen

1MLMultifunction Luminous Light Invisible Ink Pen Describe Great party bag stuffed toys for boys and girls for kids. Quantity: 1PCS written on most surfaces. Built-in ultraviolet light children will write a lot of secret messages to each other invisible to the naked eye ultraviolet light will appear on the text Note: You can write on most surfaces but whether you can stay on the surface depends on what material you write. If you write on paper it can be kept forever; if you write on metal or plastic It may not last long because it can be easily erased due to the properties of metal and plastic. Include 1X invisible pen Size: The total length of the penholder is 13cm