The Snirt Stopper is a revolutionary seal that applies to the bottom of your garage door to keep snow and dirt from coming in under the door. Snirt =SNow + dIRT. The Snirt Stopper helps to seal gaps up to 2 inches in size. The Snirt Stopper garage door gap seal not only helps to keep out dirt and snow, it also helps to save energy, by keeping cold air out in the winter and hot air out in the summer. With the Snirt Stopper your garage door will no longer freeze to the ground when it freezes in the winter. By sealing gaps, the Snirt Stopper also helps to keep small rodents and critters out or your garage. Best of all, the Snirt Stopper is easy to install, and includes Self Tapping screws.