1,waterproof 2,abrasion resistance 3,no posion 4,no smack 5,eco-friendly PE FILMWidth:1.6m-3.2m(can be slit)Weight:11g-50gColor:blue yellow white green etc.Features:1,waterproof2,abrasion resistance3,no posion4,no smack5,eco-friendly Functions:1,resist nosie2,cover large square bulidings 3,resist winds and rain4,keep warm