20FT Long Agfabric Grow Tunnel,Mini Greenhouse,Hoophouse,Tunnel Kits, 0.9oz Row Cover and Tunnel Hoops,Plant Cover &Frost Blanket for Season Extension and Seed Germination Kit: 1pc of 0.9oz 7*25ft row cover, 10pcs of 8ft long 1/4" dia hoops .Each hoop is jointed by 2pcs of 4ft long hoops and 1pc of ferrule Use hoops to support garden row covers, plant covers, protecting plants from frost, insects, birds, or intense sun Row Cover for safe and effective barrier excludes many types of pests,including insects,birds and animals,also protect plants from overheat and frost. Design for plant cover, frost protection cover and mini greenhouseprovides ideal environment for rapid germination and growth of young plants arch span: 31"~63", approximate arch height: 23"~31",as the important basis of installation