These interlocking hanger brackets are great for securing vanity cases, wall units, and mirrors to the wall. One piece fits into the other to form a solid, streamlined interlocking mount, much like a French cleat. These feature 1/4'' of side-to-side adjustability, which leaves a bit of fudge room for the installer. When you need to remove the wall hanging for cleaning, painting or any other reason, simply lift it off the brackets.