Buster Dog Maze. Place the treats in the deeply curved tracks and watch as your dog uses its nose, tongue, and paws to chase the food through the channels to the exit points. Since your dog can both see and smell the food, it will be motivated to keep trying until the Buster Dog Maze is completely emptied. This way, you will have a healthier and more energetic dog. Available in two sizes: Dog Maze for dogs over 10 kg and Dog Maze Mini for dogs under 10 kg.