20' X 10' X 7' Walk-In Tunnel Greenhouse, Garden Warm House, Large Hot House Kit With 8 Roll-Up Windows & Roll Up Door, Steel Frame

Heavy Duty Steel Frame: Heavy duty steel construction in a galvanized finish, which is resistant to rust, corrosion, chipping and peeling. The greenhouses for outdoors are also equipped with 4 slant bracing tubes, front cross bar and middle reinforced tubes for enhanced stability.