The standard width of 38cm is suitable for most inclined roof window and can cover different window frame sizes, thus, this air-conditioner window seal making it suitable for old-fashioned inclined window, skylights, and other irregular window Thickened double-layer stitching edges, smooth and non jamming zipper, able to withstand long-term use, solving the problem of frequent opening and closing and easy damage The double piece zipper design seamlessly connects to the mobile air conditioning exhaust pipe, this window seal for air-conditioner prevents cold air leakage and hot air backflow, thus, this air-conditioner window kit outward opening making it suitable for quiet and low-temperature environments such as bedrooms and attics High-density polyester fabric composite coating can block the penetration of strong winds, effectively reduce indoor and outdoor temperature difference conduction, and save electricity for cooling in hot weather Easy to-install: none tools required, the ac window seal kit is firmly attached to window frame, this air conditioning window seal kit is suitable for quickly sealing of renters and temporary residences, Manufacturer: ADYJEE