The TurboåÕå¢Ì_ÌÏÌ_å¢ (TD4) concentric drive system maintains a direct relationship between the sprocket and the footboard to provide a solid, powerful, consistent feel and response. The DW Delta III Turbo Pedal is ideal for power and consistency. The direct relationship between the sprocket and footboard provides for a solid, powerful, and consistent response Features the Tri-Pivot Toe Clamp which ensures the pedal and drum stay firmly connected, a new Non-Skid Rubber Grip for the base plate, and Dual Bearing Spring Rocker that improves smoothness.