TreatStik is a tough Nylon treat dispensing toy that will offer your dog hours of mentally stimulating fun. As your dog nudges & rolls the toy it randomly dispenses hidden treats. It stimulates your dog's mind, while relieving boredom and separation anxiety. It also helps with weight control! It is a deterrent from destructive behavior that can stand up to strong chewers. • Fill with a variety of treat sizes for an even longer play session! • Large screw cap opening for easy filling. • Dishwasher safe • Made in the USA • Make of heavy-duty nylon. May be best for use away from fine-furnishings for dogs that might like to fling it! • Sizes: Large is 9" long and is best for dogs over 40 lbs