DW Drums 9000 Series XF Extended Footboard Single Bass Drum Pedal with BagExtended Footboard Design: Provides greater surface area for enhanced control and comfort. Infinitely Adjustable Cam: Adjust your cam from Accelerator to Turbo with ease. Tri Pivot Toe Clamp: Securely attaches to bass drum hoops without damage. Dual Spring Rocker: A swing mechanism at the cam and post allow the spring to move freely. Floating Rotor: Dual bearings allow for a floating action that is smooth and responsive. Delta II Ball Bearing Hinge: