A JW? Dogs in Action Rubber Dog Toy is a fun interactive toy satisfying a dog's natural need to chew and exercise its teeth and jaws. This dog toy features a fun double-helix shape similar to a real molecule of DNA to give a dog more space to chew. Great for small, medium, and large dogs. Also makes a great toy for teething puppies. Built to last and infused with vanilla extract. Made of 100% non-toxic rubber. Ships in fun assorted colors.