The KONG Senior dog toy is customized for an ageing dog\'s chewing and play needs. The unique, natural KONG Senior rubber formula is designed for teeth and gums that have enjoyed chewing for years. Designed to provide a gentle and comfortable chewing outlet. Provides a gentle and comfortable chewing outlet while satisfying instinctual needs KONG Senior rubber formula is customized for an aging dog\'s chewing and play needs Specially formulated KONG rubber for senior dogs Great for stuffing with KONG Easy Treat, Snacks or Ziggies Recommended worldwide by Veterinarians, Trainers and dog enthusiasts