fan when viewed from above Open water: a wide ditch of water Liverpool: a ditch or large tray of water under a vertical or oxer Joker – a tricky fence comprising only a rustic (or unpainted) rail and two wings wherein the lack of filler makes it difficult for a horse to judge their proximity to the fence as well as the fence's height, making it a tricky obstacle usually found only in the upper divisions, and illegal in some competitions brush jump - a jump that has brush or faux grass on the top of it. Normally, the horse is able to see over the top of it and most of the time the horse's belly will hit the grass on top. These jumps have a cut out in the middle and brush on the side. There may be a fence or log on the bottom of the jump. The jump could be anywhere from 2–5 ft tall. The jump also may be wide, causing the horse to stretch out its legs and chest. At international level competitions that are governed by FEI rules, fence heights begin at . Other competition levels are given different names in different nations, but are based primarily on the height and spread of fences In the United States, jumping levels range from 0–9 as follows: USEF Jumper Levels Level 0. Fences 2′6″ to 2′9″ in height and 2′9″ to 3′0″ in spread, triple bars/liverpools to 3′9″ Level 1. Fences 2′9″ to 3′0″ in height and 3′0″ to 3′6″ in spread, triple bars/liverpools to 4′0″ Level 2. Fences 3′0″ to 3′3″ in height and 3′3″ to 3′9″ in spread, triple bars/liverpools to 4′3″ Level 3. Fences 3′3″ to 3′6″ in height and 3′6″ to 4′0″ in spread, triple bars/liverpools to 4′6″ Level 4. Fences 3′6″ to 3′9″ in height and 3′9″ to 4′3″ in spread, triple bars to 4′9″, water to 8′ Level 5. Fences 3′9″ to 4′0″ in height and 4′0″ to 4′6″ in spread, triple bars to 5′0″, water to 9′ Level 6. Fences 4′0″ to 4′3″ in height and 4′3″ to 4′9″ in spread, triple bars to 5′3″, water to 10′ Level 7. Fences 4′3″ to 4′6″ in height and 4′6″ to 5′0″ in spread, triple bars to 5′6″, water to 12′ Level 8. Fences 4′6″ to 4′9″ in height and 4′9″ to 5′3″ in spread, triple bars to 5′9″, water