AB is aurora borealis. Northern Lights. Like in the John Wayne/Stuart Granger/Capucine/Fabian/Ernie Kovacs movie "North to Alaska." These are not leaded glass so the rainbow effect will be less than with Austrian crystal, let us never utter the S word, Swarovski, or barely but you still get the looking through a fly's eyeball effect if you get too close. They can't take that away from you. These have a hole across the top so you can hang them from fish line. Some may have slight scratches or nicks on them. Sorry.