DW 3000-series Double bass Pedal. Used great shape. 

• Fast and smooth Dual-chain Turbo drive for ultimate responsiveness
• Bearing Spring Rocker Assembly ensures fast recovery
• 101 2-way beater gives you control over your sound and tone.
• Steel base plate and heavy-duty all-metal construction can take the punishment of live performance
• Dual Adjustable Toe Clamp ensures the pedal and drum stay connected
• Single Post Casting provides ease of movement between the pedal and hi-hat and allows for both independent or simultaneous use of both kick and hi-hat
• Adjustable spikes for non-slip action and ease of use.
• Hook and loop fastening strip reduces bass drum creep
• Includes convenient clip with drum key