Single braced, good sturdy stand, as you'd expect from Pearl. I also have a counterbalanced boom stand and Hi-hat stand - both Pearl. Adjusting wing nuts have Pearl written on them.
Pearl Unilock Boom Cymbal Stand
Pearl Pro Boom Cymbal Arm and Clamp, New Felts.
Pearl Vintage Straight Cymbal Stand
Vintage Pearl Heavy Duty Cymbal/ Boom Stand - **NO BOOM**
Pearl Boom Arm Clamp Bolt for Boom Cymbal Stand, DC-607A, NEW
Pearl Cymbal Stand with Boom Cymbal Holder with Counterweight - Excellent!!