An interesting test this morning showed me  that you have to stick with old faithful when it comes to tennis balls. 

I usually buy nothing but Wilson original tennis balls for my 11 month old Rottie, but in a moment of desperation, we recently picked up a pack of “Hyperdog” brand tennis balls at Target.  

They are a little smaller than original tennis balls, but I thought I would give it a try. 

In less than 3 minutes, here was the result:  

This can be very dangerous to pets, as bits and pieces of ingested tennis balls are a very common reason for emergency and very costly veterinary visits.   

Never, never leave a pet unattended with any tennis ball, and please use extreme caution with this brand if you have a heavy active chewer!