I have two Aussie puppies, and these bones have been great to leave in their crates. Love that they are dishwasher safe, hold up well to their moderate chewing, and a re fun to throw and fetch during play time. We may need to upgrade them to Hurleys when they are older since those supposedly are for heavy chewers. Love everything from West Paw.
My Boston Terrier loves the Drifty bone but she is able to chew bits of rubber off it.