If you own a big strong dog like mine, good luck. My "guaranteed to last" indestructible Jive ball lasted minutes. When I returned the remains I had the nasty surprise of discovering that the 'guarantee' was once in a lifetime for all similar West Paw products. That's right, buy more Jive balls and no more guarantee. Gee, why does it feel like my pup has been West Paw blacklisted. I guess "guaranteed to last" on each package doesn't mean what it used to. My advice, 'buyer beware'.