Ecoxgear SoundExtreme Tower Speaker Mounts The SoundExtremes Tower Speaker Mounts are expertly crafted for versatile application on round tubes in UTVs, marine vessels, or powersports vehicles, accommodating diameters from 1.5 to 3. They provide a smooth installation process with all necessary hardware included, and come in various finishes to blend perfectly with your setup. Features: Fit on round tubes ranging from 1.5 to 3 8 screws and washers to mount to speaker Can be used for Marine, Utv, ATV and Off Road applications Qty - 2 mounting brackets designed for use on round tubing