collapsible Hesco bastion/blast wall for military use and dike wire dia: 3-5mm hole:2''x2'',3''x3'',4''x4'' ... : Also named as Hesco barriers,sand cage,welded gabion box, wire mesh gabion box, stone cage. galvanized hesco bastion,galfan coated hesco bastion ... ,hot dipped galvanized,galfan coated,PVC coated. 4.Specifications 1) wire diameter: 3mm-5mm 2) hole: 2''x2'',3''x3'',4 ...