VIDEO: Dog receives 800 tennis balls for his birthday

And you can imagine how delighted he is.

For Joey Jax's second birthday, his owners got him the greatest gift a dog can receive - 800 tennis balls.

That is a whole lot of tennis balls and Joey isn't exactly sure where to start - should he play with this one first? Or that one over there? But what about those ones?

We're pretty sure this is what pure happiness looks like.