14 x Invisible Ink Pen Color:red, yellow, green,blue,purple, black, pink High Quality Pens & batteries included and built in. Write spy messages with the invisible ink pen then shine the massage with UV light in the lid to read what was written! They also have a very useful pull out tab for the battery so no chance of receiving one with dead battery due to accidental press. the battery can be used for a long time. Variety of fun application! Great party gifts for kids, for party bags! can write on paper, card, clothes etc. It must be a good surprise for the kids. invisible ink is the same in every color pen.
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