Double Kick Drum Pedal - Left-handed. Lick Lock Spring Tension: The Click Lock prevents the tension knob from loosening. Simply flip up for adjustment. Adjustable Traction Plate: The Aluminum Traction Dots are fully adjustable to vary the amount of slip or grip for your playingFootboard height adjustment: Loosen and rotate to desired footboard height. Rotation is clearly indexed for optimal repeatable. Control Core Beaters: The standard Control Core Felt and the optional wood beater feature anti-vibration elastomer. Carry Case: The Demondrive comes standard with a carry case to protect your pedal from the wear and tear of travel.