Dear Sir Madam, Material:Iron reatment:Galvanized Type:Barbed r Type:Barb ame:High quality barbed on:Railway Feature:Great Protection Color:Silver as you need Usage:Border Safety Protection Name:Galvanized Concertina Barbed lients' Specific Reqest 1.25mm-3.5mm(BWG18-BWG10) Barb length:10-65mm Sample:Provided