
These are good balls. I've been buying them for awhile for my dachshund. He's a ball playing fool. They (the 1.5") also fit well in his ifetch ball machine. No tennis ball will last forever, but these last him a long time. I recently got another dog.he's 2x larger with a bigger mouth and he likes to chew on these like he's doing jaw exercises. They only last about a week with him. If your dog is smaller and just likes to run and chase balls these will last a long time. If your dog is larger and/or likes to destroy balls, there is no tennis ball that will last. These are as good as they get though. I buy the 12 or 24 packs.

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