FRP MATERIAL: Extensible barricades are made of impact-resistant, FRP material that will not fade when used in hot weather, UV and weather resistance TELESCOPING AND CONNECTION SYSTEM: The folding barrier gate uses telescoping technology to expand and contract as you need. The barrier features an interlocking system to easily link together two or more units to get multiple lengths. SAFETY WARNING: Protect those around you by ensuring all dangerous or restricted areas are blocked off, for sending a clear message that an area is off-limits EASY TO ASSEMBLE: Our expansion gate can be set up in seconds(tighten 4 screws), Wheels on the bottom side to reduce physical work and save effort when towing at work APPLICABLE SCENES: Mainly used in power plants, power repair, road construction, etc, with the role of protecting the safety of staff.