I can't remember what it says. Seems like it says "whole beef brisket" but I can't say for sure.
If you look for the biggest chunk of beef, thick on one end and thin on the other and it says brisket then that will be what you want.
Here In SE Wisconsin there's a GFS restaurant supply store That's open to the public (Gordon Food Service) and they usually have a nice selection of packer cut Briskets 10 - 15 lbs
But the price is a bit shocking @ 3.99 lb
I just bought one and it was just under $60 but quite Delicious
if you can handle the sticker shock