function well as a wind blocker, noise reducer, energy saver, but also safe material, no any harm for your family. With this door sweep, you will get a quiet and tidy home and a low electricity bill. Good material - Filled with sound insulation cotton, absorb the rainwater as soon as its infiltration, give you a comfortable living surrounding. Absorb Dripping Water - Absorb the water beside the shower room and kitchen, avoid bending to clean the dripping water, and meanwhile protect your floor. Washable design - Quick clean with washing machine, avoid any damage to your hand Totally tool-free, just apply the included hook& loop strip to your door, then stick the door draft stopper.