The Punched Tape Concertina wire has been developed to replace the conventional barbed wire in its role to deter; obstruct and protect. The more effective PTC wire consist of steel strip reinforced with high tensile wire and having hook or spear like barbs at close intervals. Heavy duty clips form a concertina configuration with diameters from 610 mm to 1050 mm. the coils be attached to existing barrier fences or used independently as a barrier line. The system is used widely by the army, police commerce and industry for zero penetration in perimeter security