Dear Sir Madam, Material:Iron reatment:Galvanized Type:Barbed r Type:Single Razor Usage:Border Safety Protection Packing:25kg coil Certification:ISO9001:2008 Barb length:1.5-3cm 1.6mm-2mm barb distance:10cm,12.5cm,15cm galvanized low carbon on:protection Zinc coating:40-160g m2