There are generally two qualities of purse hardware finishes: rolling finish and hanging finish. All of my purse hardware has a hanging finish with lacquer for added protection and shine!  Rolling finish is a lower quality of plating.  It doesn’t look as shiny and doesn’t last as long as a hanging finish. Purse hardware with rolling finish has a very fine layer of color and has the tendency to rub off quickly.  Hanging finish is a high quality plating method.  Each item is individually dipped and later sprayed with lacquer for a long-lasting coat.  This process is more labor intensive, and therefore more expensive; however, you can feel and see the difference compared to rolling finish.  Bag making can be very time consuming, so it's important to invest in purse hardware that will last.