Universal adjustable sealing cloth ensures airtight insulation for portable air conditioning units, suitable for sliding, casement, window up to 92cm length Crafted with waterproof polyester with zip lock hose port, this tool free install set left no residues while blocking heat/cold transfer through window Ideal for renters, homeowners, and office spaces needing temporary climates control solution without permanent window modifications Perfect for summer cooling in apartments with tilt and turn window or studios using portable air conditioning/dehumidifiers, preventing energy leaks around exhaust hoses Removable design maintains window functionality simply unzip to open/close panes while preserving the reusable sealing strips