Bosmere Galvanized Wire Tunnel Hoops, 5-Pack - N402 Non rusting galvanized steel so will last for years Plant your seeds weeks earlier in the spring. Extend the harvesting season longer Set up a 10-feet long tunnel using these 5 galvanized metal hoops, lay your fabric (sold separately) over the hoops and you will protect your plants from cold and harsh weather Tunnel will be 16-inch off the ground and 20-inch wide