Because I received what I asked for (I think!). Anyhow, the de-luxe tripod for satellite dish is very sturdy and does what I wanted it to do. I'm not sure about the measurements given on the website (30cms - 85cms). if it refers to a closed and an open measurement, it can't be because the closed measurement is much longer than 30cms. If it refers to the minimum height and maximum height of the tripod when erected, then I can't think that to be correct either because the centre pole is only about 20cms in length and the total height of the tripod is approximately 65cms.