These boxes pillars are 60 cm high and therefore now ideal for the perfect sound.
My boxes are indeed deep 28 cm, the footprint on the pillars of "only" 25 cm deep, but there anyway vibration dampers are installed under the boxes at a distance of 23 cm, adjust my speakers optimally.
The assembly is in 10 min. done and the quality and processing of speaker stands (for this low price) is very good, including the glass plates (tempered glass - high breaking strength)..
The design is very nice!
Conclusion: You do not have a three-figure sum to invest on good speaker stands!
Here you are well served!