The Zildjian FXS16 fx Stack 16 inch is a pair of cymbals in traditional finish including Cymbolt mount. The fx stack includes a top cymbal with a specially arranged hole pattern and flat rim and a rolled steel bottom. The flattened shape allows it to be used as both a stack and hi-hat. The new Cymbolt by Zildjian is a mounting system that can be varied in tension by simply turning the top side. So it is possible to recall a wide range of sounds. The Zildjian fx Stack sounds very cutting, clear and concise, the further the screw is loosened, the more raw and washed-out the sound becomes.