I bought one of these from the mother ship shortly after we adopted our puppies in February. They’ve pretty much already eaten it.
Works fine for a single dog or calm doggos. Do not recommend for growing pups unless they are each alone in one, and someone had still better keep an eye on them. Teething puppies are chewers.
OTOH, the youngest cat thinks it’s an awesome place for the feather wand to be swished, so even with a pretty decent hole chewed in it, we can still get use from it, just not the intended use.