This looks sleek, but its design yields an insecure hold, so it always wobbles.  There's only one tiny allen screw that holds the item to its base.  They should've designed this with at least two of those screws, top and bottom.  Instead, the bottom just has this curved claw that's supposed to grab on to a (non-curved)  beveled edge, which of course it barely does.
  I bought this, the matching towel ring and the two-tiered towel bar.  They all wobble, at least after a few days of use, they wriggle themselves loose, no matter how tight you screw it in.