Adjustable size The air conditioner gasket comes in two sizes, allowing you to customize the length to your needs. It fits all types of sliding s (horizontal or vertical) and is compatible with all portable air conditioners or air dryers. Prevent cooling air from escaping Made with special TU fabric for insulation and treated with a heat-insulating process, this seal blocks cold air loss while reflecting sunlight and heat outside. It helps cool the room faster, saving energy and reducing costs. Complete sealing The seal provides tight, gap-free installation thanks to its material and expanded firm sticker. By preventing cold air from escaping and keeping flies out, it offers reliable protection. Enhanced detail The air-conditioning seal features precise cutting and routing areas for adjustment without distortion. A texture treatment near the outlet prevents the tape from dropping after inserting the air hose, eliminating gaps. Use scenarios - Use with a portable air conditioner in a room with a sliding s (horizontal or vertical) window or door; seal the gap to keep cold air in and insects out while cooling the space efficiently. - In a small apartment or bedroom where the window or door uses a sliding panel; the two sizes let you tailor the fit to reduce energy waste. - When running a portable air dryer through a sliding opening; the gasket provides a snug seal around the hose to minimize heat transfer and maintain comfort.