... to their premises and surrounding environment.......SpecificationsHeights: 1.8m, 2m, 2.4m, 2.7m, 3.0m, 4.0m, 5.2m Mesh Aperture ... : 75mm x 12.5mm Horizontal Wires: 4mm @ 12.5mm centres Vertical Wires: ... 4mm @ 75mm centres Post Centres: 2.5mm .....Typical ApplicationsHigh Security Sites ...