The Outward Hound Dog Brick Interactive Puzzle Toy will keep your dog entertained for hours as they use their natural hunting skills to seek out the hidden treats! This level 2 interactive puzzle toy comes with three easy-to-fill compartments to hide your dog's favorite treats and snacks in. Flip lip compartments open up to reveal the first compartment and can also slides to reveal a hidden second compartment underneath. White, hollow brick-style bones hide the third compartment and can be easily lifted out to place yummy treats! This puzzle toy is ideal for pups who have already mastered level 1 of the Nina Ottosson puzzle line and are ready to take it up a notch! Made from tough removable plastic parts and food safe materials that are BPA, PVC, and phthalate-free.