Adjustable sealing cloth ensures airtights insulation for portable air conditioning units, suitable for sliding, casement, window up to 92cm length Removable design maintains window functionality simply unzip to open / close panes while preserving the sealing strips Crafted with waterproof polyester with zips hose port, this tool frees install set left not residues while blocking heat / cold transfer through window Perfect fo cooling in apartments with tilt and turn window or studios using portable air conditioning / dehumidifiers, energy leaks around exhaust hoses Ideal for renters, homeowners, and spaces needing temporary climates control solution without permanent window modifications