These planters are self watering, solid construction-fairly light weight, and very easy to install. The brackets screw into the house,with provided screws, at 10 inches on center between the brackets, and the box snaps easily into the 3 brackets provided. I installed three 4 footers in about 30 minutes. They are replacing store bought inexpensive planters made of light weight plastic, that gave way halfway through last summer, with the additional weight of wet potting soil. My only small criticism is the light weight screws provided for the brackets. They strip fairly easily, so I ended up using heavier screws I had in my shop. Oh yeah-and they look terrific. Got three shout outs within an hour of putting them up, with neighbors loving the look.