The Sound Town STSD-M20W-PAIR includes two STSD-M20W poles. The STSD-M20W is a sturdy subwoofer / speaker extended pole, which is designed to fit the 1 3/8” (35mm) pole mounts as well as M20 threading. It comes with rugged and sturdy steel construction and make your PA system setup a breeze. This subwoofer/speaker extended pole is optimized for the Sound Town CARME series subwoofers and PA speakers and is also compatible with any speakers that come with 35mm and M20 mounting. FEATURES The combo set includes two STSD-M20W subwoofer/speaker extender poles Compact cylinder design Sturdy steel construction Easy one hand operation 110 lbs. maximum weight capacity per pole SPECIFICATIONS Package Weight 2.6 Ibs Package Dimensions 20.5 x 3.2 x 1.6“ (inches)