Pacific Drums & Percussion's PDAX9212 is a long closed hi-hat boom arm with an MG3 tube to boom arm clamp. The PDAX9212 allows you to mount a secondary / auxiliary hi-hat to your drum kit. The MG3 clamp allows you to attach this hi-hat mount to any cymbal or drum stand. Includes a Quick Grip clamp with infinite angle adjustment, a bottom cymbal seat, a hi-hat clutch for the top hi-hat cymbal, a 16" long, 1/2" diameter boom arm, an MG3 tube to boom arm clamp, and a DW boom arm memory lock.