I have a 25lb skye terrier (known for having razor sharp teeth) who destroys anthing and everything. He eats kong and nylabones like they are treats. Naturally, I was skeptical of this product. I must say this is the BEST dog toy ever. I have no idea why Petsmart or Petco do not sell this toy but it is 100% worth ordering. I am so thankful to finally find toys for my dog to chew that stay in one piece. I would recommend this product to anyone with an agressive chewer.