ProX Adjustable subwoofer attachment pole. Height adjustment is easy just mount to top of subwoofer (M20 thread), other end mounts to Speaker (1 3/8) Pole is adjustable from 25" up to 54" total height. Also works for subs without pole threading.
Shipping Dimensions
3.50"L x 3.00"D x 34.50"H
Weight: 4.00 lbs