Less Heat Escaping from Exhaust Hose: The portable AC hose insulation sleeve is a game changer to effectively prevent hot air from escaping from the hose, then lower the temperature inside. Great companion and accessories for your mini portable air conditioner. Easy Installation: It only takes a few minutes to put this sleeve on your portable air conditioner hose. Please follow these instructions: 1. Remove the hose from the portable air conditioner and the expandable hose. 2. Wrap the hose with the hose insulation sleeve through the magic velcro. 3. Put the elastic band on both ends). 4. Fix the deformed hose to the air conditioner and secure it with an elastic buckle band. Universal Size & Fit: This portable air conditioner hose cover is 150cm long and 53.3cm wide, fits most AC exhaust hoses with a diameter of 12.7-15cm. Sunlight Resistant Protective Cover: The portable AC hose insulation cover is a solution to protect your portable air conditioner hose from sunlight, making it much more durable. Also, keep the portable AC hose away from dust and other insects, keeping your hose clean and durable. More Applications: The portable air conditioner hose cover accessories are made of three layers of insulation material. It is a great helper to insulate many pipes, hoses, ducts or works as a protector, and it is thick, but it is flexible enough to allow the pipe to bend nearly 90 degrees, not fall apart. You can cut it easily to let it fit your pipes more properly, more practical. Decent Design and Package: The practical air conditioners insulated hose cover is fully wrapped and well knitted. It has double flexible velcros to fix and three adjustable elastic straps to fix better. Package Included: 1 x Air Hose Vent Sleeve, 3 x Elastic Buckle Straps.