My dog loves this ball and this is all I buy. They last a long time if not lost! They can be popped open if in a chewing frenzy, but usually last a long time. They bounce great also.
Love at first sight-the dogs think they are great! I have three GSD who are very rough on balls. They have been playing with them every since I bought them earlier today. Great bounce and visibility! Living in Washington I like that they are a tough rubber ball and will not get water logged like a tennis ball. One caution, even with a Chuck It Jr., they travel a long ways when tossed. Make sure you have lots of space. I am very impressed and would buy more any time I need them.
My dog likes to pull the fuzz off of tennis balls and chew on them as she brings the ball back. Result: regular tennis balls last about a week. This design solves both those problems! I bought them about 6 months ago and they are still in good shape. It works perfect with the chuckit thrower and when you don't have that your hands stay cleaner because there is less slime on the ball. Highly recommend for obessive fetchers.