The Outward Hound Nina Ottoson Puzzle Dog Casino Dog Game is a stimulating interactive dog game for dispensing treats. Boredom leads to destructive behavior and dog games can help eliminate that boredom by providing mental stimulation. This level 3 durable dog toy features 6 pull out compartments for tasty dog treats. Pups must twist the bones to unlock the toy?s drawers, which then reveal their reward. It's easy to clean, simply hand wash with warm soapy water, rinse and wipe dry.