The Everlasting Treat Wheeler is great for keeping strong chewers occupied when capped with one or two Everlasting Treats. 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.Great for dental hygieneDishwasher safeIncrease the challenge by adding smaller treats insidePerfect for powerful chewersFree of latex, vinyl, and phthlates