Wheel outriggers contribute to the overall stability of the unit. Wheel locks can keep the unit stationary when movement is not required. Unlocking the wheel locks allows for smooth, controlled and non-marking motion over a range of different surfaces. Casters, brackets and braces are steel plates and quite durable, able to withstand the harshest of brewery conditions. These casters are compatible for use with the optional leg extensions as well, and will increase overall height by 3.25". Casters are recommended for anyone who utilizes multiple work areas in their brewery and must move their beer around.