New Risk associated with Penn Tennis Balls - has something changed in manufacturing
If you have a dog this is something to worry about but it is the first time I have ever heard of problems with dogs and tennis balls. Just be aware.
I used to donate extra balls to animal shelters and still hit balls over the fence during lessons when I see a dog nearby. The owners always smile when I tell them it's for the dog and they can keep it. Usually it's an older ball so if there is any chemical residue it has probably long wore off.
