Dixon PP-P2 Double Chain Drive Single PedalDixon PP P2 Double Chain Drive Single Pedal Specifications Driven system Double chain CAM system Footboard Smooth footboard for rapid response Beater See through blue dual surface beater Beater angle Adjustment Easy adjustment Spring tension adjustment Easy adjustment Hoop Clamp Drum key Base Plate Sturdy base plate with built in spurs and rubber pad Drum key clamp Drum key included