His other hand was losing its grip on the low, slippery rail.
His legs caught the low rail behind him and he was gone.
The lower rail had dropped so that it was entirely under water.
To the left behind a low rail sat the duty officer with switchboard and radio equipment.
Only a low rail separated them from a long fall to the securing pad below.
He swung over the low rail, leaving the candle on top, and mounted the steps.
There was just enough room to squirm under the lower rail.
I sat up and looked shorewards over the ship's low rail.
Along one wall three rows of benches were set off from the main floor by a low rail.
He was leaning out over the lower rail, peering along the shore.