This flexible hose is made of white PVC. The hose is 2.5 m long and fits round connectors with a diameter of 150 mm. It is suitable for a fan or dryer, but not for the cooker hood. You can use the semi-flexible hose for that.
The material is extremely light and very flexible. This allows you to lay the hose in sharp bends without any problems. Without having to worry that the hose will constrict and therefore have a reduced airflow.