It is fun, extraordinarily durable, and keeps dogs contentedly busy playing and/or removing the tasty morsels.
"Kong enrichment devices are the anecdote for boredom and bad diets, which
are the plague of modern dogs. Pursuit play and save mastication are powerful and
necessary canine behaviors which only Kong natural rubber and unique shape satisfy.
Kongs are reliable tools to prevent serious behavior problems and simply to deliver
happiness to dogs."
Dr Roger Mugford
It's the size of a softball!