Protect your plants from frost and plant earlier! Garden Tunnels are a simple, easy-to-use method of extending the growing season while protecting plants from frost, wind chill, and garden pests. Made from UV-stabilized, 5.9 mil. Heavy-duty polyethylene with thick gauge rust-proof galvanized steel hoops installed every 2'. The easy garden tunnel expands like an accordion and sets up in seconds. Simply stretch out the plastic, pushing the hoops into the ground at the preset intervals, and you're done! This garden tunnel has been tested to keep growing vegetation up to 25°F warmer than outside temperatures. The Large Easy Garden Tunnel measures: 118"L x 23.6"W x 23.7"H (approx. 18"H when installed).