The base bar is flexible and comes on the roll. This makes it impossible to mount a really straight rubbing rail. At the latest when it is hot or exposed to the sun, it expands and you get the look of a monkey swing. 2 boat builders looked at the part and strongly advised me not to. In addition, you would have to use a lot of screws. The service from SVB was once again excellent! Well suited for pedal boats and fishing boats. This is what my ship would look like now.