It was about 6 inches before it "disappeared" and the vet said he removed a 6 inch piece of bully from his esophagus. So yes... it really was 6 inches!

I never would have thought he would swallow it! I always take them away when they get to about 2-3 inches.
I got some of the Dura Nylabones. They are the under 25 lb bacon white ones with nubs and ridges. And a chicken flavored bone with ring.
DuraChew® Double Bone - Bacon DuraChew® Action Ridges - Bacon DuraChew® Textured Ring Bone - Chicken
Max likes them. Mickey...not yet. Maybe I should have kept it simple and gotten the original shape.
How can I get them to chew them since they are used to softer bullies?