Our 6 lb Yorkie is a toy killer/slayer. He totally destroys toys that are considered tough in seconds to just minutes. This toy is an exception. I am amazed at its durability & how much he loves it. It's a ball inside a clear flexible ball & he's been trying for hours but can't get to the squeaky. He loves running after it & flexing this soft ball in his mouth. It's the perfect size & not too heavy for inside play. He'll even play with it by himself which gives us a break. It also floats but that only matters to us if we accidentally toss it into the dogs water bowl. A++ super great toy that we highly recommend!!