We LOVE this ball & so does our border collie. I was so fearful of losing the first one, I recently ordered a second one. My dog is a chewer & she destroys every toy imaginable. She has had her first Jive ball for 6 mns & there is not a single toothmark in it. I swear it's indestructible! It's also a great ball for playing fetch because, due to its design, you never really know where it's going to go & it's more of a challenge for the dog. I ordered the small size which is just right for my 48 pd. dog. Caution: these balls are heavy - best suited to outdoor play.