They must happen to be fairly difficult dogs as I have never noticed a Puppy demolish one of these. But to all those who have defied the difficult, I like to recommend the aptly named Kong Extreme. Disclaimer: This Site is made up of affiliate and/or referral one-way links which https://collinwgqyg.blogunok.com/36515919/5-easy-facts-about-dog-toys-described