ShelterLogic Grow-It Organic Growers Greenhouse with Mesh Scrim Cover, 6 x 8 x 6-Feet High-grade, all-steel 1-3/8 in. frame with DuPont premium powder coat finish. High density fabric, mesh, polyethylene cover blocks harmful UVA & UVB rays while allowing for enhanced illumination Quick-snap, roll-up side panels with full-length screens add significant airflow and ultimate temperature control Wing nuts and bolts at every connection point mean an easy no tools required assembly Half-moon, zippered screens on both end panels for adjustable airflow