Designed for windows with air conditioners this kit provides a reliable seal and moisture protection Key benefits Easy 3step setup with the included lanyard and tape kit for a secure seal Antideformation construction reinforced seams and density material preserve seal integrity Efficient temperature control double seal barrier minimizes heat exchange helping the AC run more efficiently Infiltration defense tightweave polyester blocks water and moisture sealed perimeter adds strength Materials and compatibility density fabric designed for window AC units compatible with common window frame sizes Use scenarios Summer cooling in living rooms or bedrooms keeps cool air inside and can reduce energy use Rainy or humid conditions protect interiors from water intrusion around the unit Seasonal or rental use quick install and removal and reuse across windows with standard frames