Its expensive as heck but that is the best. The holes are small WO no kids escape and no heads get stuck. It also seems to hold up better if something tries to jump it and smashes it down. I have the larger hole field fence and works good as well but I do worry about stuck heads. If you do go with a type of field fence paying for better quality is sooooo worth it. I have one pen in the cheaper stuff and its crap to the pen with red brand wire.I have Oklahoma brand max tight 2x4 inch, five ft. tall horse/field fence. LOVE this stuff and it holds up. You do want to use a fence stretcher to get it very tight, but if you do that it works great.