It has execellent properties as below :excellent ventilation,sunshade,ultraviolet radiation proof,corrosion resistance,resistance to burn,easily cleaning,stable shape,straight in hande,etc.  It is the best protective product to keep out a wide range of pests and insects and has been widely used for air exchange and insects proof in high-grade office building,residence and various buildings.It is also for field,garden,vegetable shed,etc. 1/,Common size: width: 60 - 240cm; length: 30 -300m (other size can be done as per requirement). 2/,Packing:each roll a plastic bag,then in carton. 3/,Storage: store in cool and dry location,the best condition for storage is under a temperature between 15 and 35 degrees,and at a relative humidity between 35 and 65. Storing out of direct sunlight and protecting rolls from weather and other damage.