speakers stand

I needed to put the speakers of my small sound system on pedestals and I like to use OpenSCAD, and this is the result.
I made two versions, one more than the other high about 10cm, so you can place the speakers at different distances.
I made them for speakers that have size 15,5x17,5x25 and approximately 3kg weight.
The feet have a diameter of 20mm and the following lengths:
stand down: 2 to 520mm and 1 550mm;
high pedestal: 2 620mm and 1 646mm.

Italiano:
Avevo bisogno di mettere