These premium tunnels have a unique patented design where the hoops are actually sewn in to the covers, allowing quick and easy installation. They also come with handy tie cords as standard that allow you to close both ends to give that extra protection. Forms a barrier against insects, birds, animals and frosts Green tint provides shading and retains moisture for carrots and other vegetables affected by carrot fly and aphids. Protects plants from wind and helps to conserve moisture Easy MicoMesh Tunnels are made from U.V. stabilised, fine (0.6mm grid) polyethylene mesh, and rust resistant galvanised steel hoops.