I need help on what these boat seat sliders are called.

So I bought this 14 ft sea nymph yesterday and am bringing it back to

clean stock form.



My question is, two of the stock bench seats had these railes with

rollers so the seat can slide .



I found non on ebay and googled fishing boat seat slider...found nothing.

If I knew the real name of these gizmo's I could run an ad for sale.

They appear expensive.



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