Razor Tape

As strengthened security toppings, razor wire has sharp and jagged barbs punched from sheet steel creating an obstacle that is sharp and strong in deterrence compared with common barbed wire.
We offer various blade profiles, from small to extra large, in galvanized finish, used in locations requiring the fence to have additional deterrence to climbing.
The razor tape is spiral wound and clipped at the spiral overlaps to provide a high security topping that is neat in appearance but extremely effective as a barrier.
http://www.highsecurityfencing.com/razor-tape.html

Offers list from this company:

1. [Sell] Concertina Razor Coils
   
2. [Sell] Razor Tape
   
3. [Sell] Barbed Wire
   
4. [Sell] Expanded Metal Fence
   
5. [Sell] Welded Mesh Panel Fence
   
6. [Sell] PVC Coated Steel Fencing
   
7. [Sell] Galvanized Security Fence
   
8. [Sell] Chain Link Fence
   
9. [Sell] Steel Rail Fence
   
10. [Sell] Palisade Security Fence
    
11. [Sell] High Security Fence