LifeSpan Treadmill Starter Kit Fitness Equipment Support Mat and Bottle of 100% Silicone Belt Lubricant Protect your floor and your fitness equipment. Lubricant keeps Treadmill Belt in optimal running condition Use both items to maintain the longevity and health of your treadmill Mat is light (17lbs.) and 2mm thick. Bottle, if used properly, will last 6months-1 year.