Those wire panels are from an old cookie mill I helped tear down years ago, stainless steel....currently, it is their main fence that comes off the barn...I am working out a few ideas to quickly set up little areas from them to work on...the portable electric fence I bought so far, leaves something to be desired. I have let them out just on their own, momma just follows me for the most part, as well as babies...but I dont want to have to be out there all the time...