... .5x5mm.10x10mm Width: from 250mm to 1000mm Length: 50metc wire mesh for insulation 4x4is woven by fiberglass yarn as its basis mesh ... ,stone,wall materials,roofing,and gypsunwall reinforcement , outside wall heat insulation,and roof waterproofing, it can also reinforce cement, plastic, bitumen ... other sizes as your requirements ;Products:Equipments and special products wire mesh for insulation 4x4