I'm about to purchase a PK ring and need to know what size to get. I have Sankey's Mercuring in the XL size and it fits me perfectly. Anyone know what size it is? Thanks. -J.R.

Google "ring size" and you will find a page that will have a printable version of a ring finger measurer which you cut out and wrap around your finger at the biggest place. Make sure you print it out at 100% size or your measurment will be wrong!

There's also one that has a series of circles with the correct sizes written inside each, so you can set a ring on the circle to determine it's size.

Or just go to a local jeweller and have it measured exactly.