This is the mounting block that fits on top of the bass drum for the Tom arms to fit into. One Stop Drums.
Mapex Bass Drum Tom Arm 25mm Holder Single Post Mount Hardware VGC complete
Tom Tom Holders A Bundle 6 & A Bass Drum Tom Tom Bracket .
Bass Drum Tom Mount Bracket Drum Stand Holder Cymbal Clamp Floor Tom Drum Leg
Bass Drum Tom Mount Bracket Professional Tom Mount Bracket Tom Cymbal Holder
Mapex Bass Drum Chrome Hardware Drum Claws and Tension Rods x 8 VGC
