He ones I have seen are a length of white PVC drain pipe with a slit cut down their length. I would think it would take a bit to get on and once on it would remain in place nicely. The awing would operate just fine with the tube in place.
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#
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