Key benefits White seal cloth made from nonwoven fabric that seals windows against water and drafts. Adjustable up to 4 meters to fit a range of window types. Rentfriendly and nonpermanent solution for installing air conditioner deflectors without damaging the property. Soundproofing design helps improve the performance of portable air conditioners and supports energy savings by preventing cooled air from escaping. Enhances a home office or temporary living space by reducing noise and wind interference for a more comfortable indoor environment. What it is Material: nonwoven fabric Color: white Length: adjustable up to 4 meters Function: seals gaps around windows to block water and drafts; supports installation of air conditioner deflectors Performance: soundproofing design contributes to quieter operation and reduced energy loss Compatibility and features Fits various window types Nonpermanent installation suitable for renters and temporary residences Helps improve portable air conditioner efficiency by preventing cool air leakage Reduces water intrusion and drafts around the window area Use scenarios Rental apartment with a portable window air conditioner: use this seal cloth to close gaps around the unit, blocking water and drafts without making permanent alterations to the window frame. Home office or temporary living space: deploy the seal cloth to reduce outdoor noise and wind interference while keeping cooled air contained for a more comfortable environment. Seasonal hot weather in dorms or shortterm accommodations: a quick, nonpermanent seal solution that enhances energy efficiency and comfort without damaging property.