For my application, the size of Auslassöffung was very important.
The text description is: "outlet 3.5 cm". Unfortunately, that is not true is true: 3.7cm (inside - Outside even about 3,8-4cm)
Why not fit for my personal application of the funnel and I forgive only 4 stars to make other users to whom the measure is potentially important to the incorrect product description carefully.
Otherwise, as I said, a good funnel.