Gritty is so many things, but above all, he's a big hairy piece of joy.

On Tuesday, Gritty, the legendary Philadelphia Flyers mascot, surprised 7-year-old fan Caiden O'Rourke at Shriners Hospital for Children in Philadelphia. Gritty was there to deliver a custom Gritty-themed prosthetic leg to Caiden, who was born with a rare orthopedic condition that requires him to use two prosthetic legs.

Caiden, whose birthday is in a week, seemed thrilled to receive it. Look at his face.

Mashable Top StoriesStay connected with the hottest stories of the day and the latest entertainment news.Sign up for Mashable's Top Stories newsletterBy signing up you agree to our Terms of Use and Privacy Policy.Thanks for signing up!

Tweet may have been deleted

SEE ALSO:John Oliver takes a hilarious dive into the weird and wonderful world of Japanese mascots

Hospital staff reached out to the Flyers after Caiden requested that his next prosthetic be Gritty-themed. Caiden has had multiple sports-themed prosthetic legs in the past, many of them from Philadelphia teams, according to Fox 29.

Caiden also received a custom Philadelphia Flyers jersey.

Tweet may have been deleted

Tweet may have been deleted

Twitter was delighted by the entire exchange.

Tweet may have been deleted

Tweet may have been deleted

Tweet may have been deleted

Tweet may have been deleted

Tweet may have been deleted

Gritty, please consider coming to the Mashable office to meet me, a 35-year-old adult.

---

Featured Video For You

---

Student befriends squirrel, both become campus celebs

---

TopicsSocial MediaViral Videos