Our dog puzzle food feeder has the proper difficulty for you lovely pets, 10-20 minutes daily use can effectively improve dogs’ IQ and stimulate body and brain development in funny way. You dog have to use the paws or mouth to push those 8 granaries passing through the holes until they gain all the rewards. Additionally, it’s perfect solution to consume energy and strength to prevent destructive behavior. Made of food grade material, non-toxic, odorless and BPA free, ensure your furry friends’ security.