Alex was born with a partially developed right arm. RDJ teamed up with Albert Manero who builds and donates low-cost 3D-printed bionic limbs to kids around the world through his volunteer group Limbitless Solutions.
Here is what RDJ said on his Facebook Page as well as a link to his video:
Had the absolute privilege of presenting a brand spanking new 3D-printed bionic Iron Man arm to Alex, the most dapper 7-year-old I’ve ever met.
Special thanks to Albert Manero, OneNote, and #CollectiveProject for their work making artificial limbs like this more affordable for families with kids who want to show the playground how badass they are. Check out http://www.facebook.com/LimbitlessSolutions to learn more about this incredible project. #goodcause