Shower grab rail hook

Simple hook to hang things from a shower grab rail.  I wanted a hook to hang a shower puff/scrub and the grab rail seemed a great place for it to be so it could drain into the tray.  Is designed for a 39mm diameter rail but could be scaled to suit different rails.  Printed in PETG for better heat resistance and it works great.  I made a prototype in PLA and that seemed to fair fine with std shower temp water too.