I use these for my 8" studio monitors, and they fit perfectly with an isolation pad for each. The monitors are just a little bit larger than the top surface of the stands and would fit well even without isolation pads. I've had them for almost two years.
They are quite sturdy and mostly feels like premium quality, I'd say. Very easy to handle, adjust, move and such. I replaced their plastic feet with spikes, which was an excellent upgrade for them. That I'd just recommend if you want to isolate the bass even more, though.
With the package you get some kind of "holders" for cables, which you put in a hole in the lower area. Though you can't take them out after putting them in. One of my dogs bit on two of these and I had to pull or cut in order for them to loose. They cut off by themselves when I pulled. You get like 4 of these, though, which is good!
It's easy to assemble these stands, so you don't really need to read the manual.
Altogether, they're some pretty nice and affordable, good-looking monitor stands that I'd definitely recommend to others over the more pricey options!