Plastic coated wire diameter: 3mm to 5mm;Opening: 30mm to 80mm;Roll size: 2m to 5m high, 2m to 3m wide;Vertical column: Steel tube of 60-75 diameter, 2.5mm to 3mm wall thickness;Horizontal column: Steel tube of 48-60 diameter, 2mm-2.5mm wall thickness;Connection: Anti-theft bolts connector assembly;Corrosion resistance treatment: Galvanized, then PVC coated.