outsunny 8x6 6x6 6 heavy duty walk in greenhouse garden tunnel hot house outdoor flower vegetable growth warm house roll up door windows steelThis outsunny outdoor greenhouse is perfect for year round gardening. Features a durable polyethylene covering with grid threading and a sturdy powder coated steel frame for long lasting use. A large double zippered door of the poly tunnel greenhouse makes for an easy entrance and exit. The plastic greenhouse is great for growing and protecting your plants from the cold weather. And our portable greenhouse is ideal for plants to survive the winter.