KONG Senior Dog Toy, Large; Provide your senior pup with a fun plaything with the KONG Senior Dog Toy. The unique all-natural Senior rubber formula is customized for your aging pup’s teeth and gums, designed to provide a comfortable chewing outlet. The erratic bounce offers enrichment to satisfy your furry friend’s instinctual need to play. Want to extend play time? And to add some extra fun into the mix, this toy can be stuffed with KONG’s Stuff’N Senior Easy Treat, Snacks or Ziggies (sold separately) or any of his favorite rewards like peanut butter, yogurt or kibble!