Quickly create heavy duty 4' wide low tunnel hoops out of 1/2" galvanized electrial conduit (EMT). 10' lengths of EMT are reccommended and easy to find at your local hardware store for a couple dollars a peice. When combined with row cover or greenhouse plastic these create a mini hoophouse which is ideal for season extension. Can be mounted to any hard surface such as a picnic table or workbench.