[higgmeister]

So called “razor wire” is actually concertina wire.

[conservativesister]

I get that from all the inmates and correctional officers that I know.

NOT one refers to it as concertina wire

Sorry, I guess I’m low class.

[xone]

So called “razor wire” is actually concertina wire.

No it is different, but it is coiled.

Razor wire features pointed barbs at regular intervals along the central strand. If a person or an animal that is trying to go through barbed wire fence may get cuts and grazes. Concertina wire has sharp blades which can slice deep into your flesh and cause fatal injuries sometimes.