The Outward Hound Nina Ottosson Dog Brick Interactive Treat Puzzle Dog Toy is a fun and engaging toy that will keep your dog entertained for hours. Designed for intermediate-level play, this puzzle game allows your dog to use their natural hunting skills to seek out hidden treats. The toy features three easy-to-fill compartments where you can hide your dog's favorite treats and snacks. The white hollow brick-style bones hide the third compartment and can be easily lifted out to place yummy treats. Made from tough removable plastic parts and food-safe materials, this toy is BPA, PVC, and phthalate-free. It is recommended to hand wash with soap and water for cleaning.