Material:Iron reatment:Galvanized Type:Barbed r Type:Cross Razor Coil weight:20-50kg coil 1.2mm-2.6m Length per coil:300m-500m Tensile Strength:350N Square meter Certificate of Barbed 2008 Color of barbed e,Silver,Yellow,etc :Single e 50mm coil diameter concertina razor haractor:High safety