Top critical review
Balls are extremely small
Reviewed in the United States on November 2, 2018
The photo shows are regular tennis ball, a mini and what comes with this product.
The description says that this uses mini tennis balls. It does not. They are about half the size of mini tennis balls. Within seconds of using this all three balls were lost under the couch. After I retrieved them I moved the unit into the kitchen. The balls rolled under the fridge.
They are so small they are a choking hazard for my med sized dogs. My dog plays with mini tennis balls all the time and even though those also roll under things and get lost, they are easy to replace.
The most frustrating this is that if the holes on this toy were just a touch larger normal mini tennis balls would work just fine.
The product is really only appropriate for tea cup sized dogs.