Description Material: Aluminum film+Cotton+Oxford cloth Color: As show Size: 25*100cm/9.84*39.37in 25*180cm/9.84*70.87in 25*250cm/9.84*98.43in Package: 1 pc AC window seal kit 1. Multi-layer composite barrier structure fills gaps between window frames and exhaust hoses, blocking cross flow of indoor and outdoor air to cut down cold air leakage and stabilize indoor cooling effect during equipment operation. 2. Built-in thermal insulation layer slows external heat transfer inward, lowering the workload of mobile cooling units and extending continuous running time without frequent power cycling. 3. Integrated dust blocking layer prevents pollen, floating debris and outdoor particles from seeping through window gaps, reducing interior dust accumulation and simplifying regular household cleaning work. 4. Flexible soft textile structure fits uneven window edges and sliding track gaps tightly, conforming to various household window types without rigid gaps that cause air loss around installation edges. 5. Tool-free mounting mode allows quick attachment to window frames, removable at any time without leaving sticky residues or scratches on glass and frame surfaces for easy seasonal storage and reuse.