The Raymond Geddes 5-in-1 Invisible Ink Pen will be loved by the kids. They're so cool with their invisible ink, decoder pen, secret compartment, your very own 'Top Secret' stamp, and spy magnifying glass. The kids can use the pen to keep their secrets and play detective spy games which can bring you a variety of fun activities. Bring out the spy in your child and let them have a blast. At Raymond Geddes, we make our mission to supply students and adults with imaginative and affordable pens, pencils, mechanical pencils, erasers, and other school supplies designed for school stores, classrooms, and education fundraising.