The Puppy KONG dog toy is customized for a growing puppy's baby teeth, with a unique, all-natural rubber formula that is the gentlest within the KONG rubber toy line. Designed to meet the needs of a puppy's 28-baby teeth, it helps teach appropriate chewing behavior while offering enrichment and satisfying a younger pup's instinctual needs. The erratic bounce makes it ideal for those pups that just want to play. Want to make crate training easier or extend playtime? This toy can be stuffed with KONG’s Stuff’N Puppy Easy Treat, Snacks or Ziggies (sold separately), or any of her favorite rewards like peanut butter, yogurt, or kibble!