Engaging and Great for Solo Play: This 2-level, brightly colored, interactive dog puzzle is designed to keep dogs mentally stimulated and content, helping to prevent destructive behaviors caused by boredom. Dogs must solve multiple steps to retrieve hidden treats. Fill and Shake: The toy can be filled with your dog's favorite treats through the top or side opening. Shake the toy to release the scent of the treats, then let your dog spin and play to release the rewards. Easy to Clean: The puzzle has no small removable parts and can be easily hand washed with soap and water. Remove all treats before cleaning and allow to air dry completely before next use. BPA, PVC, and Phthalate Free: Made from food-safe materials that are safe for your dog. Cleans easily with warm water and soap after each use.