Trust me, not sure the circumstances of other reviews but I’ve spent a fortune in plussed-sized, durable tennis balls over the last 8 months and think I’ve cracked it. My Bernese Mountain Dog has had two, open stomach surgeries, only six months apart. He now has to wear a muzzle when he isn’t walked by me, as, being a food forager, the second incident was caused by a piece of corn husk that became lodged in his intestine. The first incident was in March however and, it transpired there were three, whole tennis balls rolling around in his stomach, one of which was plussed-sized Kong Squeak Air. He only likes tennis balls, no other ball will do and, they keep him focussed and sensible, so I didn’t want to totally do away with them. I’ve been using the Big Dogs Balls (the largest size) but sometimesge managed to break them in one walk and it costs a fair bit to keep a plentiful supply. Tried these balls last week and have already ordered more. They’re big enough that he can’t possibly swallow them and can’t even really chew them easily. Even when he has depressed them fully, they’ve reinflated and he’s yet to crush one or destroy. I’ve been rotating them to give them a longer life.
