LIFETIME WARRANTY: Stanley has stood the test of time because it's built to. ‘Built for life’ is a motto Stanley stands by since 1913. It's their promise to provide you with rugged, capable gear for food and drinks, built to last a lifetime. All Stanley products come with a lifetime guarantee against manufacturing defects. If your Stanley doesn't live up to its legendary reputation the Stanley Brand will do what it takes to make it right. It's that simple.