Every dog is different and once you have worked out how your dog will behave with a Monchball you can decide how closely you need to supervise your dog. Monchballs have been extensively tested on two power chewing Frenchies (Peanut and Panda) and a very large Whippet (Freddie). None of these dogs have ever damaged or broken a Monchball but they tend to have little interest in it if there is no treat inside. You can take your Monchball out to dog friendly cafes and pubs and secure it to a table or chair leg to keep your dog monching while you are having your flat white and smashed avo or a pint!