If you checked any of the above, then you need TreatStik! It's 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. Large size can fit up to 1.5 cups of your dogs daily dry food! Fill with a variety of treat sizes for an even longer play session! Large screw cap opening for easy filling, dishwasher safe, made of heavy-duty nylon. May be best for use away from fine-furnishings for dogs that might like to fling it! The Small is 6" long and is best for dogs 10 - 40 lbs, and Large is 9" long and is best for dogs over 40 lbs. Trainer recommended & Made in the USA!