The selections 6m polytunnel features a strong galvanised steel tube frame tubes are 25mm x 065mm thickness with ground support bars and cross struts to offer extra stability and structural strength the cover is made from reinforced pe mesh cloth weighing 140grams per meter and features 12 windows with one roll up door r r this polytunnel is ideal for the hobbyist gardener at the allotment or in the garden at home and offers a great growing solution with plant protectionr r measures 600