I purchased these to mount a Voodoo Labs Mondo underneath a Pedaltrain Classic 2 board. The Thomann description states that they are universal, and can be used to mount any VL power supply to any Pedaltrain. However, these definitely do NOT fit the Mondo/PT2 combination. I emailed thomann and was told to call the international hotline, which I have yet to do. These were not expensive, and realistically, it's probably too much trouble to return them for a refund.
These seem to be well made and durable, but I would suggest doing careful research online before buying these, to make sure that they are correct for your power supply and board.