Long-Lasting：Air Conditioning Hose is made of thickened polypropylene , which has better heat resistance, wear resistance, aging resistance, and longer service life. It can withstand long-term hot airflow, wear, and tear without leaking.Which is a good replacement when the essential vent hose has cracked.Adjustable Length：The shortest length of the exhaust vent is 30cm and can be extended up to 150 cm, easy to stretch and shrink, which makes it stored without occupying extra space when not in use.Easy To Install：Extend the AC hose to meet up with the existing vent, line up the front of the hose and put on the unit specific coupler (If you need a connector, please buy it yourself). Turn Anti-Clockwise until it snaps into place.it’s that simple.Uni.