I have an 8mos old border collie mix that is the strongest chewer I've ever owned. Thankfully he only chews on his toys! Unfortunately it makes if very hard for us to find things that can withstand his jaws. I was so hopeful with this one. He had the sides chewed off in 15 minutes. I'm not lying. The stuffing was ripped out before I knew it, and within this mass of white cloud was one of the squeakers - which they market as being triple wrapped in "tuff" material to keep it in the toy. He really did LOVE this toy though, I'll give them that - but it definitely did NOT hold up at all.If your dog is a big time chewer, don't get this toy - it just won't last. I've had the best luck with a sherpa dragon - that at least lasted about 5 days before I had to throw it out.