Iron Man Robert Downey Jr. delivers bionic arm to boy

Robert Downey Jr. is a hero in our book.

Downey, aka Iron Man, took time to present a very special gift to seven-year-old Alex who was born with a partially developed right arm.

The Hollywood superstar delivered a bionic 3D printed arm to the surprised boy. It was provided at no cost to Alex's family, thanks to  Albert Manero, a student at the University of Central Florida who founded Limbitless. Manero is part of a group of students recognized by Microsoft's OneNote team's Collective Project campaign.

Watch Downey react when young Alex responds to the question, "Do you know who that is?"
https://youtu.be/oEx5lmbCKtY
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