Customise your bass drum sound by simply rotating the beater!The Mapex Tri-Tonal bass drum beater has three different sides to it, so depending on how you choose to mount it on your pedal, it can produce one of three distinct sounds. It has a felt side that will produce a softer sound, a maple side that produces a sound more like that of a drum stick hitting a drumhead, and a hard plastic side for extra punch!