The next step forward in bass drum performance, the Eliminator: Redline Double Bass Drum Pedal is like having four pedals in one. Its Patented Interchangeable Cam System creates a totally personalized platform for action, power and speed. Its universal drive shaft assures the same action in both the primary and secondary pedals, and is adaptable to practically any set up. Fusing the stunning flexibility and action of our Demon series pedals with a more power-focused drive, the Eliminator: Redline further pushes the boundaries of bass drum play. Features:- • DRIVE : Sprocket-less Double Chain • UNIVERSAL JOINT : Length Adjustable, Latency-Free • FOOT BOARD : Redline Reversible Traction Plate • DRIVE BEARINGS : NiNjA Low-Friction • BEATER : Control Core Quadbeater • TENSION ADJUSTMENT : Click-Lock • BEATER ANGLE : Uni-Lock Infinitely Adjustable • POWERSHIFTER : Three Position • HEEL PLATE HINGE : Zero Play (U.S. Patent #7179978)