Kong Stuff-A-Ball is an exciting treat dispensing ball that simultaneously takes care of your dog's health. Stuff-A-Ball has several patented Denta-Ridges surrounding the ball that massages gums and cleans teeth while your dog chews and plays. Fill each Denta-Ridge with Kong Stuff'n Breath Treat to attack bad breath or with Liver or Peanut Butter Pastes for a yummy treat. Stuff a Kong Stuff'n Snap in the center for an enticing and all natural snack. Available in Small, Medium, Large and Extra Large to match your dog's size.