I was shocked at how much these balls weigh, practically weightless, so they don’t go as far as a rubber ball would when thrown, however both balls are still in one piece. Covered in cute teeth marks, but as good as new. My dogo is an AGGRESSIVE chewer and chews on these like a stress ballMy doggo loves this ball over all the other ones he has.I’ve ordered these a few times now and they are great! I have a 70 pound Bernedoodle that destroys basically every toy we give him including tennis balls. He’s never gotten any chunks out of these though. We only need to buy more because he keeps losing them.My pup is 9 months old and loves playing with it. It’s large enough not go go under beds and dressers. It can bounce a bit. I don’t need to worry about my dog swallowing it! She has chewed on it, it’s still in 1 piece. It’s a bit large for her mouth yet. Maybe in a month it will fit perfectDurable and it floats! Our dog loves it!We have two dogs that love to play fetch and they destroy tennis balls in 15 minutes. We have used these balls for almost 4 months now and these balls have held up way better than I thought. They are solid and when they get teeth marks in them they seem to disappear. I would recommend them.Have a fetch addict on my hands & she usually pops tennis & racket balls. Tried everything. Best yet!Our 2 pibbles are super chewers - they get through a 12" bully stick in 30 min, toys and ropes never stand a chance, and my bigger pup especially is a chew machine and shreds anything he can get his teeth on. But this ball. This ball, man. It's the only thing they can sit there and chew on like a giant ball of gum without ever tearing it. They've had them for 6 months and they just have lil teeth indents, but not a sign of tearing any time in the near future. These are both dogs favorite toy in their whole toy box, I wish they came in all kinds of shapes and sizes! (My dogs would love it too so they don't keep losing them under the dresser?)