Dixon PP9280D Single Chain Double Kick PedalDixon PP P2D Double Bass Drum PedalDixon PP9280D Single Chain Double Kick Pedal DRIVEN SYSTEM Double chain CAM system FOOTBOARD Smooth footboard for rapid response BEATER See through blue dual surface beater BEATER ANGLE ADJUSTMENT Easy adjustment HOOP CLAMP Drum key BASE PLATE Sturdy base plate with built in spurs and rubber pad LINKAGE Universal linkage DRUM KEY CLAMP Drum key included