DOOZIE _ Tavern Puzzles Heavy Metal Disentanglement-Style Brain Teaser Old fashioned heavy metal brain teaser disentanglement puzzles. Objective of DOOZIE is to remove the large 2" diameter ring which is found hanging towards the bottom of the puzzle. Replacing the ring to the starting position is equally as challenging. Rated as a level 3 "Difficult/Severe" (on a scale of 1 to 4). On this scale both level 3 and 4 are very challenging. Hand forged here in the United States of America. Double click on image for enlarged view.