The standard speaker stand constructed from steel tubing has been
  significantly improved. The new legs with a tubing diameter of 35
  mm and the large, fixed foot end caps guarantee stability and
  safety. Lasered bore holes and durable, robust plastic saddle
  washers improve the coefficient of friction between the legs and
  braces and prevent scratching of the finish. A compact clamp with
  a patented push-button system affords user-friendly stand height
  adjustment. The locking screw provides additional stability and
  vibration-free speaker mount. Additional features include a
  pull-out guard for the extension tube, the mounting aid and an
  integral anti-shock component.