Concertina razor wire security barrier is by far one of the most perfect physical obstacles. Security barrier made of galvanized steel strip thickness of 0.55 mm, having a double-edged, symmetrically spaced, directed spines, and reinforced with high carbon galvanized wire diameter of 2.65 mm. This galvanized wire tape compresses the core, and adjacent turns of the cramp in five equidistant points on a circle. Total installed 3 or 5 rows of staples, so that it becomes formidable concertina, springy, spatial design. The use of galvanized materials can significantly extend the useful life of razor wire.

 
The diameters of the concertina razor spirals can be from 450 to 900 mm. The most common: 500 mm, 600 mm, 900 mm.