Concertina wire, concertina barbed tape, concertina razor wire, razor barbed wire,razor tape concertina coil,concertina razor coils. Razor wire concertina coil is made of metal strips,die stamped to create sharp razor barbs at regular intervals and formed around high tensile core wire, and this razor wire comes in concertina coil format.High tensile core wires make it very difficult to cut through ordinary tools. Concertina razor wire is a type of razor wire that is formed in large coils which can be expanded like a concertina and each coil can be clipped together(or without clipped) at multiple points, Making it difficult for intruder to intrude without having it cut at multiple points,thus giving more respond time to security forces. Razor wire concertina coils is effective as mainly secondary line of defend to prevent unauthorized access and Concertina razor wire is widely used security solution to prevent intruders, and widely used in high security security fencing, protecting military, government, utilities and commercial property.