Our balance beam braces are constructed with a heavy gauge steel. The ends are protected with a rubber cap to prevent marks and scratches. The measurements are from the floor to the top of the beam. If you have a 6ft or 8ft beam, we recommend a set of two. If you have a 12ft beam, we recommend a set of three. Adjustable braces are not recommended with 12ft balance beams. And folding balance beams do not fit our balance beam braces.