Dogs love the sound of crunching, plastic bottles, so we ditched the dangerous water bottle and made a more durable dog chew toy with the same great sound! CORE WON’T COLLAPSE: Unlike plastic water bottles, Crunchcore dog chew toys were made for dogs to chew on! We built a better toy and tough center that won’t collapse while your dog plays and chews. BYE, BYE, BOTTLES: Water bottle dog toys were so last century. Kick those cheap containers to the curb and upgrade your dog’s chew time with Crunchcore.