This double bass pedal features a durable chain drive, smooth rebound and adjustable pedals. Whether you play jazz, fusion, punk, heavy metal, hard rock, thrash metal or extreme metal, play along and enjoy the music. Make your best Ray McKinley, Ginger Baker or Nick Mason impressions while you jam out.FEATURES: Steel chain drive; Smooth and fast rebound; Fully adjustable jointed hinge system; Pedals are completely adjustable; 2-way beater with adjustable angle; Stable steel plate on left pedal; Fast and solid double cam action with simple execution; Plus spring tension and 3-position stroke adjustment; Adjustable stabilizer and detachable bottom steel plates; Comes complete with tuning key and assembly wrench