Body Jewelry is classified by shape. This style is "Ring" Shape.

The ball is not attached but is held in by pressure only and is called a "Captive Bead" Ring or CBR.  How to
	This type of ring is called a "Seamless" Ring and though it can be spread apart the same way as a Captive Bead Ring it will go "Out of Round" and should be bent sideways.
	This ring style is called a "Fixed Bead" ring because the ball is welded to one side and should be opened the same as a "Seamless" Ring.