We jest foud it again...

Kong Company has a nice web site =
http://www.kongcompany.com

Lotta good info - check out the "Features & Benefits",
"How to Use Kong", and "FAQ" pages.
Two of those pages have recipies and stuffing instructions.
And check out the 20% Off Cupon Game on the Home page!

They say to use the Largest RED Kong for Saint Bernards =
the Red KING Kong.
Looks like there are FIVE sizes in Red, and THREE sizes in the HD Black color.