This belt worked as advertised for approximately 4 months. Now the "fastening" mechanism no longer holds the belt in place, so it comes undone easily. Perhaps there is a way to fix or tighten the mechanism, but it is not intuitive, so the belt is now worthless...as a belt. I will go back to the old. reliable 'prong goes in the pre-made hole" design, since four months is not a particularly good "life" for a semi-expensive belt.

Good idea, poor reliability