The mesh opening is so small that people can't put fingers into it and climb it. And the 8 gauge wire is so strong that can't be cut by bolt cutters and wire cutters. 358 high security fence is also usually used with barbed wire, razor wire and wall spikes to further enhance the security. 358 high security fence with higher security can be used in prison, borderline, power plant and some places that require strong security and privacy.