These quick wire hoops are perfect for using in addition to row covers to add an additional 2-6 week extension on the season. They keep row covers and plastic from direct contact with the plant, leading better airflow, heat retention and overall plant health. These can also be used in greenhouses and high tunnels, or under taller low hoops that hold plastic, adding 5 degrees to any space. Space hoops 2-4' apart, and be sure to secure the ends deeply. 76" circumference fits well over 3-4' beds. Use with 83" row cover for a single bed.