Features 210D polyester: the sealing cloth is made of 210D polyester, which is well waterproof and can prevent rainwater from entering from the outside on rainy days. MAIN PURPOSE This window frame sealing cloth keeps hot air away from the house, whether it is hot air from outside or from a portable air conditioner. Wide application: the window seal kit is available for most portable air conditioners, for overhang dormers, roller sash and casement windows, etc. WITH CLUTCH: This air conditioner seal kit is equipped with an adjustable coupling for better sealing and less air convection, saving energy and electricity. Easy installation: simply stick the tape to the inside of the window frame and on the window, attach the window seal to the hook tape, no drilling required. Specification: Item Type: Air Conditioning Window Seal Kit Material: 210D encrypted polyester. Colour: silver grey. Package list: 1 x sealing cloth. 2 x cable ties (random colour). 1 x adhesive strip (random colour). 1 x user manual (English language not guaranteed). Package List 1 x Sealing Cloth 2 x Cable Ties (Random Color) 1 x Glue Strip (Random Color) 1 x User Manual