Extend the growing season and keep your shovel in the soil this winter with Outsunny. Mild winters aren't a problem for our polytunnel greenhouse. When winter frost brings its wavering temperatures, ensure your plants are protected. Enjoy fresh vegetables, onion, salads, and homegrown tomatoes year-round. Easy to access and ventilate with roll-up walls, doors, and windows, heat, UV, and humidity are in your hands. Made with water-safe galvanized steel, exercise your green thumb with Outsunny. ● The translucent PE cover offers UV protection to keep plants safe from harsh sunlight ● Roll up doors, windows, and sidewalls for better cross ventilation and to control temperature and humidity ● Arched roof to prevent water from accumulating ● Galvanized steel pipe is water-safe and bend resistant ● Seven crossbars, two reinforced inclined bars, and a ground frame ● Assembly required ● Color: White ● Material: Galvanized Steel, Polyethylene ● Overall Dimensions: 116.25" L x 78.75" W x 78.75" H ● Window Size: 16.5" L x 14.25" W ● Door Size: 43.25" W x 70.75" H (Front), 110.25" W x 23.5" H (Side) ● Item Label: 845-611WT