MAXTID Door Draft Stopper is a double sided insulating device for seal your door and window gap or crack. Keep the cold/warm air in your home and stop the draft from coming across the floor, helps with the heating and cooling bills, be more efficient. Simply slide under the door and it will instantly Instant protection from cold, drafts, insēcts and dust! FEATURE: *Suitable for small size doors 24" to 30" *Seal gaps of 0 to 1" *Simple and effective *Easy to install & use *Moves with your door *Works with any floor surface *Open and close the door *No need to constantly bend over to re-position *Double sided = Providing double the protection