Commercial speaker stands are a fashion accessory. If you care about the integrity of your music, you need very heavy speaker stands that resist vibration. If the speaker stand can vibrate it robs the power of your bass in particular. Every Action has an Equal and Opposite Reaction - so when the woofer cone goes forward, the speaker wants to go backwards. A skinny lightweight pole that rocks back and forth is not what you want.
You way also want to isolation vibration from the floor - best done with rubber pads. You don't have to buy expensive fashion accessories for this either.
Heavy objects cost to much to ship, so commercial stands are made too light in order to maximise profit. Make yourself, or buy something local that is heavy. Concrete is perfect. Or PVC tube filled with sand. Concrete blocks separated with closed cell foam rubber (cut up an exercise mat or camping bedroll).
It's likely 60 cm stands (about 2 feet) would almost certainly be for the consumer market, especially if the stands have an upward tilt, suggesting intended floor placement. However, some smaller, short stands may be made for table/desktop placement.
As the OP notes, speakers should be about ear height for the midrange and tweeters. I have a pair of Event 20/20bas -- very heavy powered boxes (the specs say 30 lbs/13.6 kg apiece but my cognitive distortion would have put it at 35 or 40 lbs heh ) -- on top of a pair of composite stands. The stands were hollow square columns so I filled them with sand. I'm not too worried about losing bass 'traction' in this case.
While every force in Newtonian physics has a equal reaction in the opposite direction, we are talking about a cone and coil (the only pertinent moving parts) that weigh a few grams versus the far, far greater mass of the enclosure and any amps. We are talking about a ratio of probably several thousand to one.
It's my thinking that the movement of the cone/coil is of minimal significance in normal circumstances and operation.
First you get yourself a nice table saw, a drill press, some raw high density particle board or other high mass material, and a nice garage workspace to put it all in and...
[If you are a guitarist or keyboardist and using power tools for the first time, be sure to count all your fingers before starting. heh OK, that's not really all that funny, I know a guy who has a reattached thumb. He's not a guitarist but I know other woodworkers and machinists who are. Safety first and always. Even if you only might need those extra fingers some day. ]