VEVOR Greenhouse Film, Greenhouse Polyethylene Film 15x40 ft Greenhouse Plastic Durable Polyethylene Material Greenhouse Film Keep Warming High Tenacity Easy To DIY Wide Application Thickness: 6 Mil/0.15 mm,Installation: Do-it-yourself,Material: Polyethylene,Dimension: 15 x 40 ft/4.5 x 12.2 m