Up grade GALVANIZED MTAL FRAME: this big tunnel stroll in greenhouse is made from a high quality galvanized finished weighty responsibility metal frame. The cross bars and 4 strengthened diagonal bars increase additional steadiness to prolong the serivce daily life Effortless AssemblyCreate your lovely gardening House rapidly with our greenhouse https://greenhouse-manufacturer60469.blogolize.com/facts-about-greenhouse-manufacturer-revealed-78568240