Yamaha DFP-9500C Double Foot Pedal - Double Chain Drive; Case IncludedThe DFP 9500C is a double chain drive double pedal, with an optional woven nylon belt included if you prefer the feel of a strap drive pedal. Adjustable The DFP 9500C has adjustments for beater angle, footboard angle, and spring tension. The pedal frames have stabilizer bars cast into them below the rocker shafts to eliminate flex. This keeps the bearings in alignment and gives the pedal a smooth feel. The hole in the beater hubs are teardrop shaped