Thanks for the reply, Sasha. I might have to make them, and I can either use teak, or I know where I can get some nice mahogany, which I used previously to make a new tiller, but ready-made grab rails would be a convenience, if I can find them.
The old ones got very thin from years of sanding, and one of them was damaged in removing it. My tools are in another state, so I can't make them at the moment. I either have to put the old ones back on until I can make new ones, or find ready-made replacements.
I need 6-loop rails that measure 12" from loop to loop.