One of my favorite pieces.  I use it in my bathroom next to the sink for qtips, cottonballs, and hair ties.  Its a fun way to store these items without it looking too cluttered.  The jars can tilt a bit but that is easy to tighten them.  It hangs in the back with two small triangular metal loops, so it's not on the wall super great but I haven't had any problems with it falling off.  I think perhaps you could even hang it (with your own hardware) vertically and tilt the jars 90 degrees. Of course, reaching in for items wouldn't be as easy but it would look very cool, especially if used for more of an art piece.