All-steel shaft adjusts from 31 5/8"-55" with a friction locking knob and security pin for added security. Fits tops and subwoofers with 1 3/8" pole mounts (Max height with security pin: 53.25").

•  Fits 1 3/8" speakers and subwoofers
•  All-steel construction
•  Features a 2-section vertical shaft with preset height adjustment holes and locking pin for added security and height range of 31 5/8" to 55"