Set them up on your kit once and every time, every place after that you will always have your cymbals in the exact same position.
This particular one fits the top bar, not the boom, of the cymbalstand. Will fit any 19 mm tube whether its for cybals or tomholder.
These ones will work great for mounting stuff on the pearl rack as well. I noticed not all manufacturers fit Pearl rack clamps but these ones do!
great craftmanship and quality!