We get a lot of use out of this one. My husky pup loves dental chews and devours them in seconds (defeats the purpose!) but this little guy slows her down. I like breaking the chews in half and giving her one piece at a time using the skull. She has to fight for her treat and ends up actually chewing the bites she takes off. She also has separation anxiety and needs something to keep her busy when she first goes into the crate, this totally works. She's too busy with this to notice me leave.
Lots of different chews fit in here, I've been using Pedigree Dentastix lately, but I've also broken the carob and peanut butter protein bars from her workout Bark boxes in half and they fit (very snug) too. Despite all of the gnawing and tossing she does, there isn't a mark on this yet, it even ended up in the washer (clothes, not dishes) by mistake one day with no consequences.