I have a pair of Lovan Imperial 2900 speakers stands that I really like. They are 29" tall and filled with steel shot, which made them very heavy and deadened any resonances. When I tap on it, it thuds, sounds more like a rock than metal. The previous post which mentioned them tough to fill is pretty accurate. There's only a small hole, so putting 20 pounds of shot into each stand took some time even with a homemade funnel.