<p><span style="color: #444444; font-family: Arial, Helvetica, sans-serif; font-size: 15px;">32mm and 25mm diameter steel tubing. Double braced fully adjustable stool with 11.5" diameter &amp; 3" thick padded seat. These PP Drums stands have incredibly smooth action and rock solid clamping brackets so they won't let you down when you need it most! Large non-slip feet ensure your stands stay put under the heaviest use.</span></p>