Razor wire fence

Razor wire is a type of fencing material that is made up of sharp-edged, pointed wires. It is commonly used as a security measure to deter trespassers and intruders from entering restricted areas. 

Razor wire fence is a type of security fence that is topped with razor wire, which consists of sharp-edged metal blades or barbs. It is designed to deter and prevent unauthorized entry or climbing over the fence. Razor wire fences are commonly used in high-security areas such as prisons, military installations, and border control points.