Aluminum alloy touch drop clutch Designed for double bass drum players who want to use double kick pedals without having to compromise on hihat sound Quickly changes hihat cymbals to open or closed position Hit the clutch with a drumstick and the top cymbal disengages and drops Step on the pedal and the clutch attaches itself at its original position Disengage and drop the top cymbal by hitting the clutch with a drumstick Remove the quick release mechanism on this clutch it will function as a normal standard clutch compatible with 6mm to 8mm rods