These are weighty and very sturdy. However, some of the bolts / screw to attach the speakers were extremely difficult or, in one case, impossible to screw in. A bit nerve wracking with a £7k pair of monitors. In the end though, despite one missing bolt, the monitors are secured and seem fairly bombproof.
There was also some damage to one stand. It looked like a bit had been ground away. Thought the anodised finish and a rough indent into the steel. Where it's positioned this isn't very visible though. I'm sure I could've had the item replaced but was too impatient.