Bests & Worsts Reviews from Amazon

I have a German Shepherd that chews EVERYTHING to bits, tennis balls don't even make it back from one game of fetch. I've tried all manner of balls, and they all either get chewed up in the first few minutes or they don't fit in the chuckit-which is the only way I have of running the energy out of the pup! This ball has been going on daily playtime runs for over a month now, and there are STILL no signs of teeth marks (let me pause here and gasp incredulously). I'm ordering more JUST IN CASE I lose this one, because there's no going back- this is the ONLY ball for me and my shepherd! Follow-up: The "small" size is the same size as a tennis ball, and PERFECT for a chuck-it :D