... the bottom Bolt on the flank Origin Patent Product: Expandable Barrier GateBrand: MAXPANDModel: B2TMaterial: Steel, Aluminum, Aluminum alloy, etc.Color: Red ... . OEM AbilityUsage: Using as Isolation, Protection, Caution tool.Fit Place: Road, Street, Highway, Shopping Mall, Gas Station, Parking Place, Garden, ... other kinds of urgent temporary service. 10 YEARS FACTORY! Expandable Barrier Gate 22-250cm