Set of 25 Magic Pens that can transform and erase colours and create amazing patterns.
This clever set of Marvin's Magic Pens includes colour change pens, invisible pens and much more to create magical pictures. Built with durable, shock-proof tips, they allow you to change and erase colours instantly and even create amazing, 3D letters. The secret messages can only be revealed when you want them to, using the special white pens. Fascinating entertainment.