Long-lasting is about density, not size. A big airy chew can be gone in two minutes and a small dense one can occupy a dog for an hour.
It is for the dog that empties a stuffed Kong in four minutes and comes looking for the next thing. If you have one of those, you already know.
Be realistic about the numbers. Twenty minutes to a couple of hours covers most of this collection, and only a large weight-bearing bone stretches into days. Anyone promising a specific figure has not met your dog.
The reason it works is not just occupation. Sustained chewing lowers a dog's heart rate, which is why a chew settles a dog in a way a walk sometimes does not.
No chew is safe unsupervised, and the long ones are no exception. Take it away once it is small enough to swallow whole.
Smell and mess: often the price of endurance. The densest chews tend to be the greasiest, so a mat is worth having.
Ranked by how long they actually last and how hard they are: long lasting dog chews.
