Our double expandable barricades easily extend or retract to fit different coverage needs, allowing you to quickly block off hazardous or restricted areas and help protect people nearby. Extendable Length: 20ft (6m), Retracted Length: 24.3 in (617mm) | Vevor | | Double Expandable Barricades, 20FT Expandable Safety Barrier, Flexible Mobile Barricade with Locking Casters | Brown | Best Buy