ShelterLogic Grow-It Organic Growers Greenhouse with Mesh Scrim Cover, 6x8x6-Feet 6-Inch High grade, all steel 1-3/8-inch frame, DuPont premium powder coat finish resists rust and corrosion Polyethylene fabric cover provides enhanced illumination for an optimal growing environment, high density cover blocks harmful UVA and UVB rays Quick snap, roll up side panels add significant airflow and ultimate temperature control and full length screens allow air to circulate while keeping bugs and pests out Half moon, zippered screens on both end panels for adjustable airflow Easy slide cross rail locks down cover and temporary anchors come standard for a sturdy more stable frame