Set of 4 Mobile Air Conditioner Caulking Kit, Mobile Air Conditioner Window Door Seal, with 13 cm Flat Interface and Windproof Sticker, 400 CM Window Durable Materials: Our window kit panels are made of high quality PVC. Sturdy and durable, can withstand 60℃ high temperature. Our portable air conditioner window seal kit includes 4 panels (2 fixed and 2 adjustable), 1 exhaust hose adapter, 4 screws and 1 roll of tape. Adjustable Design: Our AC exhaust kit features an ergonomic sliding design, the panel slides easily and locks quickly, no tools required. Adjustable lengths range from 43 to 140 cm/16.93 to 55.12 inches. Easy to install: Easy to combine and install the plate and exhaust pipe adapter onto the window track for quick installation and removal. It works with most vertical and horizontal sliding windows. Depending on the size of the window, you can use a 2, 3 or 4 panel combination. Good sealing: Insert the panel into the window track and seal the gap between the panel and the window with adhesive tape to achieve a good sealing effect. This new portable air conditioner window kit has a well-sealed panel that prevents cold air from escaping and hot air from entering the home. Keep your room cooler for longer. Universal: Our window kit boards are adjustable. The length can be adjusted freely according to the height of doors and windows. Fits all 5.1 diameter air conditioner exhaust pipes. Compatible with LG, Haier and other air conditioning accessories.