Check the listing for details. 9000 Series Double Bass Drum Pedal. Condition: Open box. Listed at 679.89 USD. Since their inception, 9000 Series pedals with Floating Rotor and Infinitely Adjustable Cam technology have given players the flexibility and versatility to take their footwork to the next level.Features:Infinite EZ Adjustable CamFloating Swivel SpringChain or included Nylon StrapBall Bearing HingeTri-Pivot™ Toe ClampClip & Drum KeyNylon Case IncludedSingle Post Casting Universal Assembly (with memory lock)Infinite EZ Adjustable Cam:The Infinite Adjustable Cam allows the pedal to be easily set from Accelerator™ to Turbo™ Drive or anywhere in between. Floating Swivel Spring:By having a floating swivel spring, you experience increased efficiency on the down stroke and return stroke, creating less resistance and an incredibly smooth feel. Tri-Pivot™ Toe Clamp:DW's Unique Tri-Pivot Toe Clamp.