One of my favorite pieces.  While some can wear it as they would any ring, I wear mine up between my top and middle knuckles on my middle finger, though any finger will do. It supplies a bit of the unexpeted.  I wear one of mine most days, but if you are doing some heavy cleaning or at the gym or building a house, you may want to leave it home. BTW this little piece of urban armor totally rocks the hand jesture.
 
	
Knotted copper metal sheet, just for the badassery of it.
	
5.5 ring size, the back is open so there is some wiggle room but dont expect to be able to open or close it.  Once you twist a knot in metal, it is extremely hard.
	
1.99" or 50.6mm long
	
.75" wide so measure the lenth between your knuckles.