First of all, I do not use the treat dispensing feature of this Starmark dog ball. Never did, never will. However, this IS by far the most durable and ''safe'' dog ball that I''ve ever purchased. I used the Kong large rubber dog balls in the past for their incredible durability, as my Shepherds quickly destroy any dog ball that is not truly durable. But, the Kong ball is heavy and hard, and I could not throw it very far into the air, for fear that it could knock out one or more on my dog''s teeth, when catching the fly ball. As such, I was limited to throwing ground balls, which is not as much fun for my dogs. With this Starmark dog ball, I easily can throw the dog ball 30-40 feet into the air with complete confidence that my dogs can catch the fly ball without incurring any risk of damage to their teeth. And, it is just as durable as the Kong dog ball, and perhaps, even more so, as this material simply won''t gouge or flake with repeated grinding from very powerful jaws. I purchased my first Starmark dog ball well over 2 years ago for my first Shepherd. I still have it, and it is in essentially the same condition as it was when I purchased it. I just purchased my 3th and 4th Starmark dog balls to replace 1 lost dog ball that is lost somewhere on my property, and to have a spare, in the event that another god ball becomes lost. And, that is not the fault of the dog ball. If you want a durable and safe dog ball that your dog will truly love (and become a PIA for lots and lots of ball retrieving time with you), then this dog ball is definitely the one for you to purchase.