Manual Adjust Speaker Pole with M20 Threaded Lower End, 38mm Pole & 35mm. The JBLPOLE-MA features an amazing height adjustment collar that features an ergonomic “Z” knob that provides comfortable adjustment. The strongest fitting made, the height adjustment collar prevents over- tightening and breakage issues associated with all plastic designs.
 
Features
 
Lightweight Metal die-cast collars M20 Threaded socket Fits all subwoofers with standard M20 pole threading (JBL PRX, VRX, STX and SRX818)