Inserts into: - 7” Lower Tube (Item No. DS-LOWER-7) - 9” Lower Tube (Item No. DS-LOWER-9) - 13” Lower Tube (Item No. DS-LOWER-13) - Any Vehicle Base that has a welded lower tube Features: - Heavy gauge steel construction for long-term durability - Black powdercoat finish for maximum corrosion resistance - Any Motion Attachment can be mounted on top of the Upper Pole - Convenient lever controls left/right rotational adjustments and height adjustments. - Wrench is not needed for adjustments. - Set-collar can be used to stabilize height while rotational adjustments are made. - Limited Lifetime Warranty