The Dixon 6-inch cymbal stacker allows you to add a second cymbal to your set up. This single stem stacks onto any 8mm wing nut mount to add a second cymbal. The all metal Dixon cymbal stacker is 6" long that screws onto 8mm wing nut mount to add another cymbal. Stacker includes wing nut, cymbal sleeve and Dixon branded wing nut. Add more than one stacker with graduated sized cymbals to create a cymbal tree.