5&3/4" x 1&7/8" x 5&3/4" box is still sealed in original shrinkwrap. Estimated to be 15 or more years old, wihout opening I cannot provide any great details but some of the (German) translates into "ready made pen with funny and interesting Optiset motifs, great fun for young and old!" On underside of box is stated "A Product of Ravensburger". After all these years the pen or pens inside may no longer write for all I know so please bid with this in mind. From a smoke-free, pet-free home, message me any questions, thank you for your interest.