The DW 5000AD3 Accelerator Chain-Drive Single Pedal features a host of refinements and upgrades to its original, performance-proven design. That's why the legendary DW 5000 Series bass drum pedals have remained "The Drummer's Choice" and the standard of the industry for over a quarter of a century. The 5000AD3 features an aluminum hex shaft, pedal plate and linkage, stackable heel plate, dual/side adjusting hoop clamp, 101 2-way beater, built-in spurs plus all the versatility, adjustibility and reliability that allow players to customize the feel and performance to fit the way they play.