The ProX X-POLE36 (fixed length) professional speaker heavy-duty pole is for mounting your loudspeaker on most subwoofers. Fits 1 3/8″ inch hole with M20 Mount Threads M20 Mount Threads 1 3/8″ Diameter 36″ (91.44cm) Extension Pole 200 lbs Load cap. Steel Construction QSC KW181, KSUB, KLA181, JBL VRX900, VRX915S, VRX918S, SRX718S, PRX618S-XLF, PRX718XLF, PRX400, PRX600, PRX700, STX800 & more… Will also fit into 1 3/8″ inch hole pocket
