1.reverse or one direction 2.with spool or without spool 3. 5 inches between each barb 4.high tensile(1500-1700mpa) Wire Materials: Galvanized steel wire, PVC coated iron wire in blue, green, yellow and other colors. General Use: Barbed wire mainly serves in protecting of grass boundary, railway, highway, etc.TypeWire Gauge (SWG)Barb Distance (cm)Barb Length (cm)Electric Galvanized Barbed Wire; ...