Gibraltar 9711GS Single Bass Drum Pedal with Carrying Case Fast touch G-branded pedal board Sleek, smooth surface hi-performance styling for a comfortable feel Sculpted single pillar frame with enclosed spring tension system Spring tension adjusts at the turn of a wheel. Tension indicator enables you to set and play G-Drive dual adjustment cam drive 2 point cam adjustment alters resistance and motion to suit your playing style Variable weight balance can be fine tuned using swap out magnet weights Helix mounting system Pedal mounts to your bass drum hoop via a ratchet drive, single-point lever. One step quick release hoop mount to detached pedal