DW Cymbal Stackers thread onto any DW cymbal stand to create multi-cymbal and percussion effects setups. The stacker eliminates the need for another cymbal stand or a bulky arm. This DW stacker is 4" long, which makes it ideal for smaller cymbals such as splashes or small crashes. Helpful Hint: Place a smaller diameter cymbal on the stacker and a larger one on a cymbal stand. The DW Cymbal Stacker makes playing both cymbals easier for you.