This super flexible and durable drain hose is made of premium EVA and PE materials, offering anti-aging, non-toxic, and frost-resistant properties. The hose end is constructed with thickened material for enhanced flexibility and resistance to deformation. Its universal design fits most standard air conditioners; simply insert the air conditioner's outlet into the hose end without the need for tools. It can also be used as a semi-automatic washing machine inlet hose. With excellent flexibility and high resilience, the hose can be bent freely according to your needs and quickly returns to its original shape after being squeezed, providing greater durability and a longer service life compared to standard air conditioner drain hoses. Note: When installing, ensure the drain hose has a proper tilt angle and is positioned over the desired overflow area. The end that connects to the air conditioner has an inner diameter of 18 mm (0.7 inch) and an outer diameter of 27 mm (1 inch). Please measure your air conditioner's outlet to confirm compatibility. The hose is 1.6 meters long, suitable for everyday use.