This shower rod does (almost) exactly what you want, which keeps the great duck shower curtain over the bath safely. 4 stars, there is only that the rod does not lock itself with a lot of power so that keeps you through the pure compressive force. Luckily in my bathroom the flow levels under the ceiling is over and the bar is on there. So for all where the flow mirror does not go up to the ceiling and you have a small edge (few mm range), I can thoroughly recommend this bar. Robust is you and also will not scratch so quickly.
