My little guy (5.5 lbs) loves them. The fingers (thats what I call them, are easy to chew off and crunch up. The main part is bigger so he chews at it to clean his teeth and gums.
Once it gets to where I think it can be swallowed, I toss it in the garbage.
Medium to larger dogs will have no problem crunching it all up them swallowing.
I like them more than pigs eats for the health benifits.