I have the field fencing as my main fence but when I had a regular sized horse, he decided even though the grass in his pasture was perfect, the grass on the other side is even better so it began to sag, then he got his hoof caught in the fence cuz he would try and pull it down so he could reach better. Anyway, I ran a strand of electric along the top and he quickly stopped. But now I have the two minis and we don't use the field fencing so much anymore because we decided to section off the big pasture into 3 small pastures and then rotate it. But now I'm moving and we have to set them temporarily in a tiny pasture, about the size of two round pens put together, maybe a bit bigger. But with it being winter and us getting over a foot of snow every year, it doesn't matter about the size, so long as they can move around and run. Both my minis are blind in one eye, even the same eye, so I liked the tape due to it's visibility but the rope is visible too, have even seen yellow rope so maybe rope is the way to go. Seems easier to handle than wire.