The G-Floor Garage Door Threshold seal mounts directly to your garage floor creating a superior seal. This tighter seal will help prevent anything from being blown under your door such as water, dirt, leaves and snow. In addition, the seal helps reduce air drafts to save on energy costs throughout the year. The seal is attached directly to the floor, creating a physical barrier and preventing moisture from seeping in where there may be an uneven surface. The threshold is one solid piece of vinyl with no gaps or cracks, making your barrier solid. This product is compatible with all door types. One cartridge of adhesive included for mounting seal directly to floor.