Tony Stark has gone through many changes since his first appearance in Iron Man 1. One of the changes has been his arc reactors. This officially licensed Iron Man Arc Reactor Replica Pin Set features his first 3 models: Mark 1, Mark 2, and Mark 3. These reactors all light up with 3 different settings: always on, a slow blink, and a fast blink. These magnetic replica pins are perfect for cosplay or may be displayed in our beautiful presentation box. A limited-edition of 5,000, this set comes with a certificate of authenticity