Specifications include, but are not limited to: A one-time purchase for Razor Wire. 25 Inch Detainer Hook Razor Wire Spec – (4,800 Feet Required). Must have Tape Material: 430 Stainless Steel/ 1 inch Wired prior to Forming. Must have Core Material: Galvanized Steel/.98 inch Diameter. Must have Barb Length/Spacing Offset:2.5 inch (+/-.10 inch) tip/tip/4 inch on Center. Must have Single Coil wire reinforced concertinas that are fabricated from 0.025 inch ASTM A653 (GA galvanized Steel. Each roll must consist of 31 coil loops with pairs of loops alternating together. Must have Clusters of eight needle sharp barbs that are located along 4 inch o.c spiral turns. Barbed tape Must be wrapped 230 degrees around 0.098 diameter GA core wire.