Door bottom sealing strip guard is a double sided insulating device for doors and windows the fabric draft stopper sleeve holds foam cylinders on opposite sides of a door, creating an airtight, draft-proof seal, You can save a lot of power if you are running an air conditioner in your room. An ac needs to work harder if there is air leak from the room, especially from under the door, Door draft stopper easily move with the door and glides over carpet, wood, tile, linoleum. No need to bend down and reposition.The door strip can be quickly cleaned by machine washing , no more hand wash, save your time and labourExcept used for your front door, back door, garage entry door, bedroom door, bathroom door, it is also suitable for windows to help prevent drafts and seal in hot or cold air, • Sound Reduction Vacuum, • Stop Outside Air Transmission, • Washable & Waterproof, • Gives Protection from Sunlight, Dust, Pests, Mosquitoes, and Rainwater Etc..