Dogs just can't resist the satisfying crunch of an empty water bottle! That's why we've designed FAT CAT® Water Bottle Crunchers. Perfectly sized for empty water bottles (or any empty plastic bottle up to 20 oz in size!) This toy packs a punch with a crunch. Made of heavy-duty canvas construction for durability. It's refillable! Use an old water bottle to fill this toy at the handy-dandy opening. Ships in assorted characters either Snake or Caterpillar.