[RHINO]

those jacks are all pretty good but IMOP they add weight that can be better used elswhere. i know its not that much weight, but i built my trailer light and want to keep it that way. i am soon adding a RTT and a rack to hold it so i wanted support legs also,, this is what i did.
i welded square tube on the rear corners vertically, then made up a "slider" tube to fit in them with feet on the bottom,, i nose down the trailer a bit slide down the legs and then bring the trailer up to level, its simple light and works. i only use one hole for a fixed position and shim to level if needed, but a few holes for different heights is easy enough.
my original idea was to have the legs hinged and fold under the trailer when stowed.