The DW Delta 2 Double Turbo Pedal is jam-packed with refinements and upgrades to the original DW 5000 Series bass drum pedals. DW 5000 series hardware has remained the standard of the industry for over a quarter of a Century, and is the choice of drummers everywhere. The Turbo TD4 concentric drive system maintains a direct relationship between the sprocket and the footboard to provide a solid, powerful, consistent feel and response. This rock solid, fast, quiet pedal is total quality.