RowTunnel,10ft long High Rise Hoops for Row Cover and Grow Tunnel,Plant Cover &Frost Blanket For Season Extension Support, Pack-10 fiberglass garden hoops never rust, pack of 10 easy quick high rise hoops for row cover,plant covers, much stronger than general plastic and iron garden hoops greenhouse frame width can be ajustable 5/16" diameter by 10', each hoop is jointed by 2pcs of 5ft hoops and 1pc of ferrule Arch height: 24~30 Arch span: 62~84