I bought a pair of these. Am very happy apart from one thing. They are lovely and heavy. A nice simple design and they look great under my KRK VXT8s. But.... I was sent two different types. The height adjustment mechanism was slightly different on each. One of then has a good design, with a groove for the bar (that sits inside the tube, and then rests on the bracket) and the other didn't. This groove helps stop the speaker rotating, which in the busy environment I use them in is a must. I was a bit disappointed.