How big were the largest Moon rocks brought back from the apollo misions?

What size and weight were the largest moon rocks that were brought back from the apollo missions ?

From Wikipedia:

Apparently weighs about 26 lbs. Size doesn’t seem to be given, but an image of an astronaut picking it up makes it seem to be a bit smaller than a soccer ball.

Big Bertha and Great Scott are two other large moon rocks, around 20 lbs each.

It appears to be about the size of an NFL football.

thank you