"Let nature bring your green dreams to life. This greenhouse is made of 4mm twin-walled clear polycarbonate panels that are virtually unbreakable and block out 99.9 of harmful solar radiation, yet provide excellent heat retention and even light that will let your plants prosper. The panels are supported by a rust-resistant aluminum frame that includes an adjustable roof vent and a swinging door for ventilation. Glazing Polycarbonate, Frame Spacing in. 24, Frame Thickness in. 1/2, Width in. 73, Dimensions L x W ft. 8 x 6, Ventilation Roof vent, door, Center Height in. 85, Side Wall Height in. 53, Outer Material Polycarbonate, Style Gable, Color Green, Frame Type Rust resistant aluminum frame, Length in. 97. Heavy-duty galvanized base kit lets you anchor the greenhouse to a wood or concrete foundation"