Got an additional crash, splash, or other smallish cymbal you want to use but can"t find the space? Think vertically! The PDP PDAX904 cymbal stacker mounts atop any standard cymbal holder and gives you the freedom to add cymbals wherever you want. It locks on to the cymbal holder with a drumkey-operated nut, making for a secure attachment that won"t shake loose. Includes two cymbal felts and two washers.