CONTERRA ARENA SHARK– Engineered to make Arena Maintenance Easy! Conterra’s Arena Shark features our revolutionary Depth Control System which allows you to easily and consistently control your arena depth over the entire surface. With the Easy-to-Use Top-Wind Jack, adjust your Arena Shark’s grooming depth in one simple movement, in a matter of seconds. Once this is established, the distance between the tire and sweeps never changes. Simply lower the groomer until the tires hit the ground and drive. A Side-Wind Jack controls the Arena Comb and lets you decide the kind of finish you want, a light or deep harrow. The Front Floater Bar automatically adjusts with your tires and constantly floats and levels the arena surface.