Here we feature a double bass pedal by Griffin MX series. These double chain-driven bass drum double pedals are made entirely of all metal. This heavy duty double kick pedal is not only sold with a drum key, but offers so many other quality features. These double kick drum pedals boast of double spring adjustment ability for the ultimate constant tension control, a frictionless bearing hinge for smooth drum pedal action, stable double spine weighted pedal plates for a sturdy flat-footed kick, and beater shaft locks to ensure the beater stays in the correct position at all times. The speed of the deluxe bass double pedal is smooth and quick. Having a fully adjustable power cam system accelerates the beater speed, and the double cam plates enhance the life of the pedal as well as provide an intensely solid feel while the bass kick drum double pedal also sports a double locking spring tension rod that guarantees your personal tension settings never change while playing. Don"t forget that these double bass pedals also include force locking bass drum clamps to help keep the pedal connected to the bass drum at all times. This double bass pedal also features quad sided beater heads, so you can change between soft or hard surface impacts.