Superior feel in a swiveling 2-leg design for easy positioning in multi-pedal set-ups. DW 9000 Series Hi-Hats utilize a patented Double Eccentric Cam that increases the sensitivity of the foot board in relation to cymbal movement, resulting in a unique, incredibly fast and responsive feel. The Infinitely Adjustable Locking Spring Tension feature (also shown left) allows for precise adjustment to offset the weight of the top cymbal, creating a customized feel.