I agree with Parm & Nathan, get a really good one, we have three, but, you won't need that many for your small area. I also use the white electric tape, three strands for my big guys, and four for my minis but my brood mare & foal paddocks have stock fence with electric wire so that is why I need three boxes. Buy the best you can it will be worth it 20 years or more down the road. The electric tape is excellent if you live in a storm area, as we have all manner of branches, trees, etc. fall on it, just get it off, stretch it back out and it's good to go. Plus some of the small post make some of it portable for moving around and saving grass. Are corner posts are wood, wood posts in the big pasture, but the small paddocks just use the small posts bought at TSC they have some with the loops attached so the tape just slides right in and makes it easy to tighten. For mantenienc you just wipe the tape off once a year wix a mixture of bleach & water, real easy.