Luckily, you have options. Some balance beam makers have created products with interchangeable legs. For instance, a beam might come with wide junior beam supports but also have fixtures to accommodate training beam legs. When the time comes, you simply order the new legs. Other manufacturers design their beams with adjustable legs, so they can be immediately changed when needed. This option is a better choice if you have children at different skill levels.Remember, gymnasts should always practice one at a time on the beam to prevent accidents and injuries.