Vertical is a single set of poles or panels of the height being jumped. Verticals are usually the least intimidating for new riders, but are more difficult for the horse to judge because of their lack of depth. Variations include: panels that look like gates, usually straight across the top (although the riviera may have a downward curve in the middle); brush boxes (narrow containers, not much wider than a jump pole, into which greenery can be stuffed to look like a fence with a hedge); and flower boxes (boxes not much wider than a pole with flowers sticking out; they're usually very low; to look like a garden border).
