Extremely durable, but soft in your dog's mouth, the Treat Dispensing Chew Ball is ideal for feeding your dog his meals or retrieving. Starmark Mental Stimulation toys help keep pets mentally engaged in an activity they enjoy. They help foster natural hunting and foraging behaviors, and help prevent destructive boredom behaviors. This item can be used with Interlocking Treats, or with portions from your dog's regular meal to turn mealtime into playtime.