The Mets handed these cards out at the last home game. To be honest, I was too lazy to download the app and lost it anyway.
So.... that's what it does! Pretty awesome. Thanks to @auswaitforittin for the post on IG.
Just 179 days left until Opening Day.
Mets Photo Of The Day is a daily thing. Check out the archive.
It's not often a home team does something like this for visitors, and we tip our caps to them. Great gesture by the Nationals.