This has been a fantastic tool for training our Redtick Coonhound, Ruby. She used to be trained with snacks (her dog food), but now her reward for doing something correctly is her ball. We have one for each vehicle and one for the house. You’d swear it has some kind of power over her by the way she loves her ball! One of the best features it has is that it is essentially indestructible! We have never had to replace any one. She can chew and chew and her ball never breaks, shreds, or pops. I love this product because I can wash it, so no more nasty tennis balls that can collect mud or anything else nasty that might make Ruby sick. I have added a link for this ball so you can buy one for your best friend. I swear this will be the last ball you will ever buy!