The DFP-9500D is a direct drive double pedal, with a solid cast link between the rocker shaft and the footboards. The direct drive "pushes" the footboards back on rebound, giving the pedal a quicker response. Many drummers that play heel-down prefer the feel of a direct drive.
The DFP-9500D 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 tear drop shaped so it securely holds the beater shafts and keeps the new two-sided beaters from spinning. The new beater is felt on one side, and hard plastic on the other.
The side-adjustable hoop clamp holds firmly to different thickness hoops, and tightens with a wing bolt.
The DFP-9500D ships in a hard sided soft case to keep the universal joints, beaters, and pedals together for transport.