A: We have tens of thousands of Flex-Head Tee's in the field. We have tested them in machines that swing at 125MPH club head speeds and we have individuals that have been hitting the same tee for three years. We have PGA professionals that are approaching 15,000 hits and still going. As the inventor of the tee I have been unable to break it. The swing machine will heat it up and fatigue it to failure but that's hitting it at 125MPH 1,200 times a minute. The tee melts really, it doesn't break. We know this type of guarantee can be a gimmick to convince you to buy it. I would think the same thing. But I can assure you, we don't like gimmicks any more than you do. If you don't lose it, you could literally use a single tee for 10 years. After that, your just going to want a new one so it looks nice. If you do mange to break it, you get a new one on us including postage.