THE CENTERPIECE OF THIS EASY-TO-INSTALL SYSTEM IS THE INNOVATIVE 2141 CLAW HOOK CLAMP THAT SECURELY GRABS BOTH SIDES OF ANY DW OR PDP BASS DRUM COUNTER HOOP. A HEIGHT-ADJUSTABLE HI-HAT ARM INCLUDES A 9213 INCREMENTAL HI-HAT CLUTCH WHICH ALLOWS DRUMMERS QUICK, VARIABLE TENSION ADJUSTMENT OF HI-HAT CYMBALS, STACKED EFFECTS AND OTHER HI-HAT MOUNTABLE PERCUSSION ACCESSORIES. DESIGNED TO WORK WITH 18”-24”DIAMETER BASS DRUMS.ALWAYS ATTACH THE RUBBER FOOT ON THE BOTTOM OF THE ROD, TO REDUCE THE RISK OF SCRATCHING YOUR BASS DRUM SURFACE WHILE USING THIS PRODUCT.