Wall Spike also named Razor Spike or Bird Spike,which is similar to razor barbed tape, is an equipment that can be used against melee attacks by humans or creatures.It is a good choice of metal anti-climb fence for security. It does damage on contact and knocks the attacker back. By Wall Spikes do not damage wild dinosaurs upon contact.The Wall Spike can use anchors fixed on the wall, fencing, gates, buildings or metal guardrails. The Wall Spike is widely used in the garden, factories, airport, etc security fence protection, to play a protective role. And when used in prison or military based, it can enhance security on the basis of fence system. Wall spike is fabricated from steel sheet. It is a good choice of metal anti-climb fence for security. For the material,all of the galvanized,stainless steel and pvc coating options are available,you can make a choice as your needs. And there are many spike form:small, medium, large, and others, such as castle wall spikes, bird spikes.