
I've just used this system on a large picture frame and it's really well thought out. The kit includes everything you need, even a spirit level and a liner for the bottom of the frame so it sits evenly above and below the wall in relation to the wall. The really nice part is that you don't have to worry about fitting the brackets perfectly on each side of the frame. Simply insert the fastening tab on one side and then use the supplied "labeling tab" on the other side. The tip of the marker tab protrudes slightly, so attach the frame to the wall on one side (mounting tab), and then use the bubble level attached to the frame to adjust the position of the frame. If you see the bubble is in the center the image is now aligned and simply pressing to the side with a marker will leave a small notch in the wall where you will install the second mounting tab. It's about as reliable as you can imagine.

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