THE ABSOLUTE CLUTCH. For many drummers, traditional Hi Hat clutches have been a source of frustration when trying to change Hi Hats quickly. Quick-Set Hi Hat Clutch (QHC7) is the complete solution to this ever present problem. It offers a one-touch lock & release simply sliding a switch on the bottom nut. At the same time, this switch prevents the top Hi Hat cymbal from loosening while playing. Due to its unique shape, the upper nut is designed to make the top Hi Hat cymbal float more freely - maximizing its natural resonance. *The Quick-Set Hi Hat Clutch can be used with other manufactures' Hi Hat rods measuring no more than 7mm in diameter.