Hercules Speaker Stands
I have 2 different pairs.
The short pair is: 12 3/8" High with 9"x10" top plate.
The tall pair is: 15 3/8" High with 9"x10" top plate.
I think that the legs can be filled with sand or lead shot.
Each pair comes assembled and includes a set of directions,
eight cone points, and eight threaded spikes.
A set of eight casters is $25 additional, only one set is available.
I weigh almost 200 lbs and have often used one stand to stand on
(without the casters); I have no idea how much weight they can support.