The Nina Ottosson by Outward Hound Dog Smart Composite interactive dog puzzle is a fun way to get your dog excited about problem solving games! This mind-stimulating level 1 dog toy features nine treat hiding compartments that can be filled with your pup's favorite treats and covered with nine pegs that release the tasty scent of treats through the top hole. Place on the ground and watch your dog use his noggin as they paw and nudge the pegs over to uncover the hidden rewards! This puzzle requires one-step actions to get to the hidden treats, which is perfect for pups who are starting out! Made from food safe composite materials that are BPA, PVC, and phthalate-free. Cleans easily with warm water and mild soap.